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Demography Unit 1 Demography Demography is the measurement of the population of a specific place in a particular time and their scientific study. Demography means the statistical and mathematical study of population size, regional distribution, composition and population change. Demography can also be stated as the scientific study of human population. Major sources of population statistics: Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data. In applying statistics to, e.g., a scientific, industrial, or societal problem, it is conventional to begin with statistical population or a statistical model process to be studied. The major sources of population statistics are as follows: 1. Primary Sources 2. Census 3. Vital registration 4. Sample survey 5. Administrative records 6. Secondary sources 7. Organizations and institutions 8. Books 9. Journals 10. Newspaper Population: A population is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding. In human population, Population is the number of people living in specific area. World population: For humans, population density is the number of people per unit of area, usually quoted per square kilometer or square mile which include or exclude, for example, areas of water or glaciers. Commonly this may be calculated for a county, city, country, another territory, or the entire world. The world's population is around 7 billion, and Earth's total area (including land and water) is 510 million square kilometers (197 million square miles). Therefore the worldwide human population density is around 7 billion ÷ 510 million = 13.7 per km2 (35 per sq. mile). Density of population of Nepal: Population density in Nepal is also increasing along with the rapid growth of population. Due to limited land areas of the country, it is natural that population density increases simultaneously with the growth in the population. Looking at the condition of population density in different censuses from 1981 to 2001 AD, it is found that population density has increased in all development regions. However, it has increased drastically in the Terai region in comparison to the hills and the mountains regions. Population density has also increased rapidly in the country as a whole. The density of population was 102 persons in 1981, 126 persons in 1991 and it reached 157 persons in 2001 AD. From this fact, we can clearly consider Nepal as one of the density populated countries in the world. Our country is also full of inequality in terms of population density by geographical and development regions. The population growth rate in the central development region is the highest of all development regions. The main reason behind this is the migration of people to this development region due to the availability of fertile soil and various other facilities and services. The major factors responsible for the increasing population in Nepal are; 1. Early marriage and child marriage. 2. Polygamy 3. Ignorance and illiteracy of the people 4. Poverty 5. Importance of son in the family 6. Role of children in economic status 7. Low status of women in the society 8. Lack of population education 9. Concept of more children means more income 10. Lack of women employment 11. Higher rate of infant mortality 12. Social superstation etc is the main factor in the contest of Nepal. Composition of population: Population composition is the description of a population according to characteristics such as age and sex. These data are often compared over time using population pyramids. The composition of the population is part of the social environment. It provides a framework against which to interpret the health status and behaviors of the population. Composition of population can be classified and studied by the following ways; 1. Population composition by sex 2. Population composition by age 3. Population composition by occupation 4. Population composition by religion 5. Population composition by caste 6. Population composition by language From such study of population composition, can get the idea of the population structure of a place, area or country. The number of males, females, children, adults and elderly are taken in to account. The total population can be divided in many ways for the systematic and scientific study of population composition. The different societies are formed on the basis of sex, age, caste, language, religions and occupation. The scientific study, research and analysis of every aspect of population of any country or region have direct relation with the composition of population. The structure and situation of a particular community or society of the country can be depicted by the composition of population. Hence the real picture of a certain community or society is presented by population composition. Population data: Population data can be obtained from different sources. Two major sources are: 1. Primary sources 2. Secondary sources There are four types of sources of primary data namely Census, Vital registration system, Sample Surveys, Administrative Records. Secondary sources refer to those data that are already collected and compiled by other national and international organizations. Data are needed for explaining the distribution of population because: 1. From the data we are clear cut idea about the population situation can be visualized and the plans and policies can be made for the existing population for their progress and development. Therefore data are needed for explaining the distribution of population. 2. Data are used to find out the number of present and future voters. 3. They are also useful for international compression. 4. Data report is also used by individual scholars and researchers. 5. Demographer needs census data to make precise projection of future population. 6. It is useful to prepare life table. 7. It is also useful for policy maker, researcher, economics, politicians, statisticians and other to perform social activities. 8. It is useful to formulate future plans. 9. Data records also help on many others needs. Demographic measures: The measurement of the three components of fertility, mortality and migration are necessary for the proper analysis of population. The rates of fertility, mortality and migration are used for measuring population changes using different formula. Necessary figures are calculated from these measures. We can analyze the changes in size, composition and distribution of population. Moreover, the trend of the changes of population in the future can also be analyzed. The fertility rate can be obtained in the following ways: 1. Crude Birth Rate, 2. General Fertility Rate 3. Age Specific Fertility Rate 4. Total Fertility Rate The mortality rate can be obtained in the following ways: 1. Crude Death Rate 2. Age Specific Death Rate 3. Infant Mortality Rate The migration rate can be obtained in the following ways: 1. In Migration Rate 2. Out Migration Rate 3. Net Migration Rate 4. Gross Migration Rate Migration: Migration is the process of transferring of people from one place to another place for permanent settlement. Migration affects the distribution of population of the place. The distribution of the population of the particular place will be affected because due to urbanization the people will migrate to urban areas which will definitely increase the population of that place. Similarly the population of the urban areas will decrease accordingly. In this way migration creates uneven distribution of population. So migration is not a good factor in population because people do not migrate to rural areas where there are ample natural resources. The proper exploitation of natural resources is decreasing due to migration. The factors affecting migration are age, sex, family status and occupation. They are described as follows: 1. Age: In both of the internal and international migration, young age people migrate more than the people of other age groups. One of the reasons behind this is that young people can easily adapt in a new place, society or climate. The number of migrants from children, old age groups is very low in comparison to the young and economically active population. 2. Sex: Internally, female migrate more than males because they have to leave their parents home and go to their husband's home after they get married. Males migrate in search of work. 3. Family status: The status of a person also affects migration. Young and unmarried people migrate more than the married and people of other age group. 4. Occupation: People have to migrate from their birth place to new place for occupation. By the nature of work people do migrate from one place to another place. Measures of Migration: 1. In-Migration Rate: The rate of number of people migrating to certain place is called the in-migration rate of that place. Mathematically it can be calculated by; IMR=IP∗1000IMR=IP∗1000 2. Out-Migration Rate: The rate of number of people migrating from certain place is called the out-migration rate of that place. Mathematically it can be calculated by; OMR=OP∗1000OMR=OP∗1000 3. Net Migration Rate: The difference between the number of people in migrants and the number of out migrants is called net migration rate. Mathematically it can be calculated by; NMR=I−Op∗1000NMR=I−Op∗1000 4. Gross Migration Rate: Gross Migration Rate refers to the total number of immigrants and emigrants and divided by mid-year population of that year multiplying by 1000. Mathematically it can be calculated by; GMR=I+OP∗1000GMR=I+OP∗1000 Sex-ratio: The sex ratio is the ratio of males to females in a population. It is generally denotes the number of males per 100 females this can be derived from following formula: Sex-ratio = mn∗100mn∗100 Where; M = total male population in particular year F = total female population in particular year Factors that affect birth: There are various biological factors affecting birth. The biological factors affecting birth are heredity, age, ovulation, lactation, miscarriage and health. Any three of them are described below: Heredity: Heredity affects birth because the problems related to reproductive organs; reproductive process and infection of sexually transmitted diseases have negative effects on fertility. Age: People become fecund after they reach certain age of maturity. Girls become fecund after they reach the age of 14-15 and they can conceive upto the age of 49. Therefore age is the biological factor affecting birth. Health: Healthy man has healthy life and their child bearing capacity is affected by their health also. Therefore health is the biological factor affecting birth. Factors that affecting death: The factors affecting death rate are heredity, sex, senescence, diseases, level of nutrition, health services and facilities and health education. Any four of them are described below: Heredity: Longevity of life is characteristics of heredity. Long life is attributed to heredity. Some people whose forefather lived for a long period of time are also living longer. Longevity of human life depends on the environment where they are born and brought up. Sex: It has been found that female live longer than males. This trend has not only been seen in a certain countries but everywhere in the world. It has also been found that infant mortality rate for boys are higher than for girls. Diseases: This is the age of science and technology. In spite of great development of science and technology, scientists have not been able to prevent death. People have to lose their life being the victim of infectious, fatal and hereditary diseases. Level of nutrition: Food is one of the bases of life. Continuous intake of nutritious food is as important as air and water for the survival of life. Lack of nutritious food makes people fight against diseases which ultimately take the life towards death. Short-cut formula of Demographic Measures: 1. In-Migration Rate: IMR=IP∗1000IMR=IP∗1000 2. Out-Migration Rate: OMR=OP∗1000OMR=OP∗1000 3. Net Migration Rate: NMR=I−Op∗1000NMR=I−Op∗1000 4. Gross Migration Rate: GMR=I+OP∗1000GMR=I+OP∗1000 5. Sex-ratio: Sex-ratio = mn∗100mn∗100 6. Total dependency ratio: Total dependency ratio = no.ofpeopleaged0−14and60andabovenoofpeople15−59∗100no.ofpeopleaged0−14and60andabove noofpeople15−59∗100 7. Crude Birth Rate: CBR = BP∗1000BP∗1000 8. Crude Death Rate CDR: CDR = DP∗1000DP∗1000 8. Population doubling Time: PopulationdoublingTime=70PGRPopulationdoublingTime=70PGR 9. Population Growth Rate: PGR=CBR−CDR+NMR1000∗100PGR=CBR−CDR+NMR1000∗100 10. Rate of Natural Increase: RateofNaturalIncrease=CBR−CDR1000∗100RateofNaturalIncrease=CBR−CDR1000∗10 0 11. Infant Mortality Rate: InfantMortalityRate=D0B∗1000InfantMortalityRate=D0B∗1000 Quality of Life Quality of life: The fulfillment of basic as well as additional needs in order to have a life full of happiness and satisfaction is called quality of life. Quality of life is a degree of happiness or satisfaction that is achieved by the fulfillment of various needs in one’s life. In a quality of life every sorts of demands of an individual needs to be fulfilled. If a person receives different types of physical facilities but not a secure life then that is not the quality of life. So a quality of life includes all essential services and facilities for the happiness and satisfaction of human being. The tasks which were thought impossible are nowadays been completed very easy by the assistance of one technology. In the past people were very happy when they got a good fooding, housing and clothing. But eventually the people have started demanding high and high. So their expectations should be met to have a good quality of life for them. In the war stricken countries the stoppage of the war will be the expectation of the people and if the war is stopped then the people will feel secure and happy and their quality of life is accordingly met. Therefore by change of time and the country's situation the definition of the quality of life changes. The 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. elements of quality of Nutritious Family life are Family Social and cultural as under: food size Health Sanitation Education income Security Saving Housing values Nutritious food: nutritious food is one of the elements of quality of life. It plays an important role to develop family members physically, mentally, emotionally, etc. Lack of nutritious food and balanced diet results malnutrition. Due to malnutrition people become weak, powerless and also suffer from various diseases. Family size: The family size is an important element for quality of life. It directly affects other elements of quality of life. If the family size is large then the family has to spend more amount of money to fulfill the basic needs where as if the family size is small then the family can easily maintain the basic needs so family size is one of the elements of quality of life. Health: Health is wealth of the man. If money is lost nothing is lost but if health is lost then everything is lost. So health is very important. A person has to have a very good health in order to have a quality of life. So a good health needs to be maintained for all the family members in order to have a quality of life of the family. Sanitation: Sanitation is a very important element of quality of life. If we keep our surrounding such as house, courtyard, waste material pit, public well, tap, path road, ponds, lake, etc. then our life style improves. Consequently, quality of life can be achieved. Education: Education is the only great thing which can lead a man from darkness to brightness. It can make a person learned and an educated person can deal with any sorts of difficulties very easily. Therefore education is considered as an important element of quality of life. Short Notes on: Low quality of life and family dispute The fulfillment of basic as well as additional needs in order to have a life full of happiness and satisfaction is called quality of life. Quality of life is a degree of happiness or satisfaction that is achieved by the fulfillment of various needs in one’s life. If these necessary needs are not fulfilled in the family, these will decline the standard of living of family. As a result, the member of the family will be deprived of basic needs. Degradation of quality of life creates a number of problems. In this way, Low quality of life and family dispute. Quality of life and employment Employment is an important element of quality of life. It directly affects the other elements of quality of life. If the employment then more amount of money should be spent even to fulfill the basic needs of life. In such condition, the needs of the members of small family can easily be fulfilled. They will get an opportunity of quality food, clothes, housing, etc according to the seasons, quality education, health, and recreation. Therefore, to rear children well to provide opportunity of good and quality education, Due to employment parents can easily undertake their responsibilities towards their children. In this way, employment helps to improve the quality of life. Delayed and appropriate age for marriage for quality life Much harm will be done to the health of women if she conceives the child by marriage at an early age. The effect will be adverse on the health of both mother and child if the child is born at an early age due to early marriage So, proper care of health of both mother and child cannot be made as a result child become mentally physically and intellectually weak. Delayed and appropriate age for marriage helps to make the selection of proper life partner and to be responsible parents. Due to this family life become happy and gives quality of life. High maternal and infant mortality rates in the family with low quality of life Low quality of life is resulted whenever there is no any sort of happiness and satisfaction in the life. Low quality of life is also resulted when there is no fulfillment of basic as well as additional needs. High maternal and child death rate has also resulted the low quality of life. When the mother and child lose their life because of lack of provision of good health facilities and services then also the low quality of life is resulted. Therefore the child death rate and maternal death rate must be reduced in order have a good quality of life. Low quality of life and low income In such low quality of life, it becomes difficult to get employment opportunity; Unemployment means low or no income coming to the family. It promotes the low quality of life due to various reasons. Low income degrades the quality of life. Low income of the family leads to poverty. Since the family income is not adequate to meet the family needs, it results in dissatisfaction. Hence low income makes low quality of life. Problem of sanitation in low quality of life Sanitation is a very important element of quality of life. If we keep our surrounding such as house, courtyard, waste material pit, public well, tap, path road, ponds, lake, etc. then our life style improves. Consequently, quality of life can be achieved. But lack of education in low quality of life creates sanitation problems. Family size and quality of life Family size is also an important element of quality of life. It directly affects the other elements of quality of life. If the family size is large then more amount of money should be spent even to fulfill the basic needs of life. In such condition, it becomes difficult to get employment opportunity, provision of security, transport, communication, recreation, human rights, freedom, etc. As a result quality of life in a large family size cannot be easily maintained. The needs of the members of small family can easily be fulfilled. They will get an opportunity of quality food, clothes, housing, etc according to the seasons, quality education, health, employment and recreation. Therefore, to rear children well to provide opportunity of good and quality education, to keep them healthy and strong, and to manage the family expenditure, the family size should be smaller. In small sized family, parents can easily undertake their responsibilities towards their children. In this way, small family size helps to improve the quality of life. Basic needs: The thing that is very essential for the survival of an individual is called basic needs. Food is the most essential thing required in one’s life. Without food man cannot survive for a single week. Food provides energy to do work and other activities. Similarly clothes are another essential thing required for people to protect themselves from external things. It is also the basic need of people. Also the thing that is of prime necessary to all the living beings is shelter. A good shelter protects the man from heat, rain and other kinds of external things. Such basic needs should be fulfilled in order to live a simple life. Without the basic needs life is not possible. Quality of life and saving: The degree of happiness or satisfaction in one’s life which is received by the fulfillment of basic as well as additional needs is called quality of life. For a quality of life saving is very important. Many difficulties might arise in one’s life. In such difficulties the most important thing is money. Money is the most important thing in today's world because without money very small thing is also impossible. So saving should be done in order to make the future better in any sorts of difficulties. Family size: Family size is also an important element of quality of life. It directly affects the other elements of quality of life. If the family size is large then more amount of money should be spent even to fulfill the basic needs of life. In such condition, it becomes difficult to get employment opportunity, provision of security, transport, communication, recreation, human rights, freedom, etc. As a result quality of life in a large family size cannot be easily maintained. The needs of the members of small family can easily be fulfilled. They will get an opportunity of quality food, clothes, housing, etc according to the seasons, quality education, health, employment and recreation. Therefore, to rear children well to provide opportunity of good and quality education, to keep them healthy and strong, and to manage the family expenditure, the family size should be smaller. In small sized family, parents can easily undertake their responsibilities towards their children. In this way, small family size helps to improve the quality of life. Role of education in quality of life: Education is the light of knowledge. It raises awareness. A person can improve his/her family members' quality of life through the proper knowledge, attitude and skills attained by education. Therefore, education is regarded as an important element of quality of life. Educated people do not have any problems in getting job and earning money. The educated family members are capable to achieve or fulfill their basic and extra needs easily. Likewise, education enables people to use modern services and facilities in a easier way, helping them to improve the quality of life. Low quality of life and high maternal child death rate: Low quality of life is resulted whenever there is no any sort of happiness and satisfaction in the life. Low quality of life is also resulted when there is no fulfillment of basic as well as additional needs. High maternal and child death rate has also result the low quality of life. When the mother and child lose their life because of lack of provision of good health facilities and services then also the low quality of life is resulted. Therefore the child death rate and maternal death rate must be reduced in order have a good quality of life. Environmental Status Of Nepal Status of environment in Nepal Ecosystem: Ecosystem is defined as the structural, functional and self-sustaining unit of biosphere, which consists of biotic and abiotic components. There is a continuous cycle of interrelationship between a community and its physical environment that causes the formation of complex and permanent relationship. Such kind of phenomenon that occurs in the nature is also known as ecosystem. So, an ecosystem can be defined as an overall integration of the whole mosaic of interacting organisms and their physical environment in particular areas. An ecosystem includes biotic factors like producer, consumers, decomposers and abiotic factors like soil, rock, water, heat, light etc. An ecosystem includes abiotic factors like soil, rock, water, heat, light etc. It helps for the circulation of the ecosystem properly. It also helps in the balance of ecosystem. They are responsible for the survival of the living organisms All living beings in nature fall under biotic factors. The factors indicate a biological community of particular area. A biological community can be divided into producer, consumer and decomposer on the basis of flow of energy in the ecosystem. Producers: Producers are those living organisms of the ecosystem which are capable of synthesizing their own food from inorganic compound. For example, grasses, trees, Aquatic green plants, etc. Consumers: Consumers are the heterotrophs of the ecosystem which feed on other living organisms. For example, cats, insects, fish etc. The relation between the people and the environment: There is Very deep relation between people and the environment. The conservation of the forest is very important to have a balance in the natural environment. The conservation of the forest plays an important role so it must be preserved by the effort of the human beings. Community forests must be conserved with the help of the students. These programs help to increase the awareness level in students and also in protecting the forest. Soil is also very important element of the environment which is very necessary for the mankind. Without soil on earth the life of the human beings on earth is almost impossible. So soil must be preserved by the people by various ways. Use of harmful pesticides and chemical fertilizers for high yielding of crops may give short term benefit but it detroits the quality of soil in a long run. Therefore the conservation of soil must be initiated. A lot of waste products are produced in our daily use. Ecosystem of Nepal by Geographical Region: 1. Ecosystem of the mountainous region: The ecosystem of mountain region is different from that of other regions. There is 35% of land of the country is covered by mountain region. Its altitude Varies from 4877 meters to 8848 meters. Sub divisions are inner himalaya, main himalaya and marginal Himalaya. In this region Trees like pine, fir, deodar, bhojpatra, talispatra, rhododendren, gobre salla, thingre salla, etc are found. And animals like himalayan thar, himalayan ghoral, serow, langur, musk deer, red panda, snow leopard, etc. Plants and medicinal herbs like yarsagumba, panchaunle, uwa, barley, buckwheat, etc are found. The people of this region follow hinduism and buddhism as their main religion. The main economic activities of this region are trade, agriculture and animal husbandary. 2. Ecosystem of the hill region: The ecosystem of hill region is different from that of other regions. There is 42% of land of the country. It’s altitude from 610 meters to 4877 meters. Sub divisions are churiya range,mid hill and mahabharat range. Trees like sal, chilaune, bamboo, katus, kharsu, peepal, rani salla, etc are found in this region. Animals like tiger, clouded leopard, deer, jackal, wolf, bear, fox, monkey, langur, etc are found. Plants and medicinal herbs like mushroom, kurilo, koiralo, asuro, harro, barro, sarpagandha, zibre saag, etc are found. The castes living in this region are Brahmin, Chetri, kami, damai, rais, limbus, magars, etc. The people of this region follow Hinduism as their main religion. The houses of this region are multi storey in the urban areas and are made up of concrete and cement. In the villages are made up of wood, mud and stone. 3. Ecosystem of terai region; The ecosystem of Terai region is different from that of other regions. The altitude of this region gradually decreases moving from north to south. Various aspects of the ecosystem of terai region are described below: Physical aspects There are altogether twenty districts in terai region of Nepal. They are Jhapa, Morang, Nawalparasi, Bara, Parsa, Chitwan, Banke, Bardiya, etc. Terai region of Nepal covers 23% of the total land area of Nepal. Terai region has the variation of altitude from 60 metres to 610 metres. Terai region consists of twenty districts. Terai region of Nepal is divided into three sub-divisions. They are inner terai, main terai and bhabar terai. Terai region is the most fertile among all the regions of the country. Terai region is also called the granary of Nepal. Biological aspect The biological aspect of this region is also different from that of the mountain and the hilly region because of the varation of the land topology and altitude. Different kinds of birds found in Terai region are eagle, vulture, hawk, crane, stroke, hornbill, peacock, etc. Similarly trees like sal, sissau, khayar, pipal, bamboo, katus, chilaune, etc. are mainly found in this region. Animals like leopard, tiger, elephant, rhinoceros, panther, crocodile, deer, bear, etc are found. Medicinal herbs like amala, harro, barro, mushroom, etc are also found in this region. This region is also called the store house of the food grain. Socio-economic aspect The types of food crops found in this region are rice, wheat, maize, etc in this region. The houses in the urban areas are multi storey buildings where as in the rural areas are small and made up of bamboo wood and stone along with mud. People of caste like Satar, Dhimal, Rajbansi, Tharu, Yadav, Mandal, etc live in this region. The main economic activities of the people of this region is agriculture but people are also engaged in service and trade along with business. People in this region mostly follow Hinduism as their religion however few number of muslims are also found. The main festivals that the people of this region observe are Dashain, Deepawali, Holi, Janai purnima, Id, Chhath, etc. Physical aspects of the mountain, hilly and terai belts: Physical aspects of the environment are altered with the alteration of the geographical region. The physical aspect of mountain region is peculiar from that of hilly and terai region. This is because of the landform and the structure of the topology. The altitude of the terai region is from 60 metres to 610 metres where as the altitude of hilly region is from 610 metres to 4877 metres. Similarly the altitude of the mountain region is from 4877 metres to 8848 metres. So the physical aspect of the place differ with the geographical region. Hilly Region Terai Region Mountain Region 1. 42% of land of the country 1. 23% of land of the country 1. 35% of land of the country 2. Altitude from 610 metres to 2. Altitude ranges from 60 4877 metres metres to 610 metres 3. Sub divisions are churiya 3. Sub divisions are inner terai, range,mid hill and mahabharat main terai and bhabar terai range 4. Soil found- Alluvial soil 4. Soil found-Silty 5. Climate- Hot and humid 5. Climate- Modrate 2. Altitude from 4877 metres to 8848 metres 3. Sub divisions are inner himalaya, main himalaya and marginal Himalaya 4. Soil found- Silty and loamy 5. Climate- COLD Moist and dry Socio-economic levels of mountain, hilly and terai belts: MountainMountain region lies in the northenmost part of the country. The people living here in the mountain region are specially Bhotiyas, Gurungs, Ghales, Mugals, Thakalis, Dolpo,etc. The people of this region live in the house made up of wood, mud and stone with thatched roof. The houses have small doors and windows in order to prevent the escape of heat in the frigid region. The main religion of the people of this region is Buddhism however some people are Hindu. The main festivals of the people are Lhosar, Buddha Jayanti, Udhauli Parba, Ubhauli Parba, Dashain, Tihar, Maghe Sakranti, etc. The main crops of the mountain region is millet, maize, potato, barley, wheat, buckwheat, etc. the main economic activities of the people of this region is animal husbandary. People are also engaged in trade and business along with the collection of the medicinal herb. People also has depended their livelihood in agriculture. They put on very thick clothes in order to prevent themselves from irresistible heat. TeraiThere are altogether twenty districts in terai region of Nepal. They are Jhapa, Morang, Nawalparasi, Bara, Parsa, Chitwan, Banke, Bardiya, etc. Terai region of Nepal covers 23% of the total land area of Nepal. Terai region has the variation of altitude from 60 metres to 610 metres. Terai region consists of twenty districts. Terai region of Nepal is divided into three sub-divisions. They are inner terai, main terai and bhabar terai. Terai region is the most fertile among all the regions of the country. The main caste living in this region are Dhimal, Rajbansi, Satar, Rajput, Yadav, Mandal, Tharu,etc. The people of this region follow Hinduism as the main religion however Muslims are also found. The houses in the urban areas are multi storeyed building where as in the rural areas is of wood, mud, stone and bamboo. The main festivals observed in this region are Chhath, Holi, Dashain, Tihar, Id, Bakrid, etc. The main economic activities of the people are agriculture, service and trade. HillyThere is 42% of land of the country. It’s altitude from 610 meters to 4877 meters. The status of religious and cultural heritage of hill region is different from other. The main Cultural and religious sites of hill region are Haleshidham, pasupatinath, Swoyambhunath, Manakamana, etc. The castes living in this region are Brahmin, Chetri, kami, damai, rais, limbus, magars, etc. The people of this region follow Hinduism as their main religion. The houses of this region are multi storey in the urban areas and are made up of concrete and cement. In the villages are made up of wood, mud and stone. The main festivals observed in this region are Dashain, Tihar, Christmas, Id, Lhosar, Buddhaajayanti,etc. Various jatras are also celebrated. The main economic activities of this region are agriculture, business and service. Biodiversity Biodiversity: There are millions of creatures like vegetation, animals, and microorganisms including human beings on the earth. They have variation among themselves. Their diversity or variation on the ecosystems denotes biodiversity. Biodiversity is specially classified into three levels. They are species, ecosystem and genetic diversity. 1. Species Diversity There are various species of animals and vegetations including human, elephant, birds, maize, wheat, pulse, potato, etc. They are categorized under species diversity. The species of micro organisms like virus and bacteria also come under it. 2. Ecosystem Diversity Ecosystem is the inter relationship between living organisms and the environment. Living organisms survive according to their capacity and capability. There is also biodiversity due to the structure of ecosystem. 3. Genetic Diversity Each creature has own genetic qualities, the people in the mountain have the genetic quality of bearing cold while the people in terai have the genetic quality of bearing hot. In this way the genetic diversity among other creatures also exist in the environment. The description about the importance of biodiversity is as under: Agricultural products Agricultural products give the daily food to survive for the human beings. Various products like paddy, maize, wheat, vegetable, fruits, etc are the basic food of people needed to be taken in order to live a healthy life. The source of all those products is agricultural biodiversity. These plants were in the wild state at the beginning but the human beings started cultivating them. In this way agricultural biodiversity is very important. Animal products Animal products are also very necessary for the survival of human beings. The animal products like milk, curd, ghee, meat, fish, etc are very important sources of protein for the nourishment of the body. Raw materials required for the medicinal treatment is also obtained from the animals. Income generation can also be done from the animal products. Vegetative products Human beings obtain fruits and wild roots from plants. Plants are the sources of furniture, industries, herbs, clothes, medicines, paints and papers. Biodiversity has made us able to obtain many kinds of useful materials from various kinds of plants. Improvement of breeds There are various species in the biodiversity which has become very important for the human beings. These species of the nature which exist in the biodiversity are scientifically tested and cross breeding are done in order to produce highly improved breeds. The cross is done on the basis of local species, disease resisting capacities, etc. Therefore biodiversity is very important. Soil conservation Soil is the integral part of biodiversity. Without soil life wouldn't be possible on earth. It is directly the habitat for thousands of life living under soil and it is the most suitable platform for the growth of crops. The biodiversity has also resulted the conservation of soil in the nature. Due to the capturing of the soil by big as well as small plants the soil is prevented from erosion. The decayed and dead plants and animals after going under decomposition be bacteria serves as the nutritional element for soil. In this way the fertility of soil increases. In this way biodiversity is important for soil conservation. Measures of Biodiversity conservation: Human activity is the most important for the conservation of biodiversity. Human beings are the wisest among the living things found on earth. Biodiversity is getting degrading due to the unwise activities of humans. Human should be very conscious about the conservation of biodiversity. If biodiversity will be exploited systematically with maximum use and less harm for the nature then it will be the best way for the conservation of biodiversity. Various Organizations are conducting different programmes at national and local level for the conservation of biodiversity. The conservation of biodiversity refer to the conservation of whole creature on earth. It is the conservation of habitat required for them and is also the conservation of genetic characters, conservation of animals requires the conservation of habitat and ecosystem. Conservation work develops both of their numbers and characters. Therefore the conservation of biodiversity is essential. 1. in- situ and Ex- situ conservation: The conservation of the living beings and animals by creating a man made habitat is called in-situ conservation of the rare animals and plants. The conservation of the natural resources in their own natural habitat is called the ex-situ conservation of rare plants and animals. 2. NTNC For the instance, National trust for natural conservation has been conducting different programmes for biodiversity conservation through the participation of community members. 3. ICIMOD The international centre for integrated mountain development is also conducting different programmes for the conservation of biodiversity and management of habitats and ecology. 4. IUCN The world conservation union IUCN is also conducting different programmes for the conservation of biodiversity and management of habitats and ecology. Role of community in diversity conservation Community is closest to biodiversity. The utilization of the elements of biodiversity is done by the people residing in the community. Due to the people of the community the biodiversity is also getting degraded day by day. Biodiversity conservation has become the most important issue in today's world. We need to be very careful about the conservation of the biodiversity. Conservation of biodiversity does not only mean to preserve them without touching them. Rather the conservation of biodiversity means the proper exploitation and systematic utilization without making severe harm to the biodiversity. Community should make plans and policies and look after the conservation of biodiversity because initiation of community for its conservation can be very important. Different causes of depletion of wildlife in Nepal: Like most developing country, threat to biodiversity in Nepal is initiated by the activities of the human beings. Habitat destruction and over-exploitation are the main cause of extinction of wild life. a. Habitat loss, forest destruction and degradation: In Nepal the greatest threat to the conservation of wildlife comes from the activities of man which include habitat loss and forest destruction. The destroying habitat of wild life by overpopulation for commercial timbering, cropland, industries, road ways, canal developmental activities, for fuel wood, power plants cause wildlife extinction. b. Over-exploitation of forest resources: People to large extent depend on forest resources for their sustenance. People use forest products for fulewood, fodder, timber, shelter, medicine and food plants which increase the extinction of wild life. c. Illegal hunting and poaching: Illegal hunting is common practice throughout Nepal. Mammals and birds are killed, river fish stocks are overexploited, dolphins are trapped for meat, pheasants are hunted for their meat and carnivores are hunted for their pelts and bones. d. Trade: There has been commercial trade of wild flora and fauna both legally and illegally. One of example is one-horned rhinoceros which is in decreasing amount due to trading. e. The population growth and poverty is also the main cause of wild life extinction. Rare animals The habitat of organisms, birds and animals is called the natural environment. Rare animal is considered as the condition in which their number is not sufficient at present. Some examples of rare animals are as; 1. Clouded leopard 2. Red panda 3. One-horned rhinoceros 4. Bengal tiger 5. Crimson Horned Pheasant 6. Black stork 7. White stork 8. Sarus Crane These animals have lost their habitat due to various reasons. Trees in the forests are cut indiscriminately which have caused the loss of their habitat. Forest fire has also caused the loss of their habitat. People are hunting these illegally for selling important organs of the animals because those animals have very high demand on the black market. Strong rules and regulations are not made therefore the poaching is still continued which has caused to the increment of the rareness of the animals. Due to the adverse affect in the environment various reasons like forest fire, landslide and other regions the habitat of the organisms living on earth is losing their habitat. Therefore the conservation of habitat must be done. For this plants should be planted in bare land and the stream and the water areas must not be filled up. National parks: 1. Chitwan National Parks: It is the oldest national park of Nepal and covers 932 km2 areas. It is declared as national parks in 1973. It is also placed in world heritage site. It comprises a complex ecosystem of Churia hills, ox-bow lakes and flood plains of Rapti, Reu and Narayani rivers. 2. Langtang National Park: It is situated in the north of central Nepal and is the nearest park to Kathmandu. It comprises 1710 sq. km. The park is the home of several ethnic groups. 3. Sagarmatha National park: Sagarmatha national parks lie in the solokhumbu district of the north-eastern region of Nepal and cover an area of 1,148 sq. km. It is established in 1976 and declared as world heritage site in 1979. 4. Rara National park: Rara national park is located in North-west Nepal. The park lies in Mugu and Jumla districts in the mid weastern Nepal. This is the smallest park in Nepal covering 106 sq. km. It is established in 1976. 5. Shey- Phoksundo National park: It is situated in the mountain region of Dolpa and Mugu district of north-west Nepal. It is the largest park in the country with an area of 3,555 sq. km. The area around shey and phoksundo lake was first purpose as a wildlife reserve in 1974 and in 1984 a very large area around that is declared as national park. 6. Khaptad National park: The khaptad national park is located in the mid-mountain region of far-western Nepal. It was established in 1984 and it covers area of 225 sq. km. 7. Bardia National park: Bardia national park is situated in Bardia district in the middle far-western terai. The park which covers an area of 968 sq. km. it is established in 1969. 8. Makalu-Barun National park: It lies in the solukhumbu and sankhuwasabha districts of eastern Nepal. It was established in 1991. Population, Development Environment and Pollution environment and development Population, environment and development have very close relationship with each other. The use of natural resources increases due to population growth. The uses of land, water, etc. increases to grow food subsistence. Similarly, population growth causes the growth of poverty, hunger, disease, illiteracy, etc. If the growth of population goes on, the needs of human cannot be fulfilled from natural resources. The development activities like construction of road, increase in agricultural production, production of industrial materials, export of manufactured goods, etc are necessary to be operated in the country for economic development. Such development activities provide employment to people. Skill is developed in them. The level of their work increases. It results the economic development of a person, society and country. The life standard of people does not change without the developmental activities. Development Development activities are the pathways for the economic development of people. If development activities will take place in certain place then the people and the lifestyle of people will also develop gradually. When there will be road construction in one of the place which is the part of development then the products that are produced in that place will get market which will enhance the economic development of people. In such ways development activities enhance the economic development of the people. Development environment and have very close relationship with each other. The relationship between development and environment is stated as under: 1. Use of natural resources The use of natural resources increases due to population growth. The uses of land, water, etc. increases to grow food subsistence. Similarly, population growth causes the growth of poverty, hunger, disease, illiteracy, etc. If the growth of population goes on, the needs of human cannot be fulfilled from natural resources. 2. Development and construction works Human beings carry out various kinds of development works to fulfill their needs. Development activities should operate continuously to fulfill the needs and desires of growing population. The aspect of environment conservation cannot be abandoned while operating developmental activities. 3. Economic development The development activities like construction of road, increase in agricultural production, production of industrial materials, export of manufactured goods, etc are necessary to be operated in the country for economic development. Such development activities provide employment to people. Skill is developed in them. The level of their work increases. It results the economic development of a person, society and country. The life standard of people does not change without the developmental activities. 4. Social and cultural activity There are social and cultural activities in society. People protect, renovate, construct traditional rituals, religious places, temples, etc. These activities are development works related to social and cultural aspects. The protection, promotion and development of such aspects support to raise the culture of people. The relationship between the activities of development of various aspects of population and environment should be continuously adjusted and managed. The development works should fulfill the needs of present generation. Similarly, it is our duty to protect the environment which is able to fulfill the needs of future generation. Major development activities The development activity refers to the modernization of the environment. Development is the positive and structural improvement in the state of the existing physical, human, cultural situation, etc. Development works help to bring gradual change in existing situation. Development makes progress in social, economic, cultural field, etc. it helps to fulfill the need of people and raise the standard of living. When the country is developed then the country will march to happiness and satisfaction of the people. Development activities are essential for the development of the society. Development works encourage people to utilize the resources like land, water, forest, etc. The development helps to make the people self dependent. Economic status of people will be improved. It brings change in the lifestyle of people. Thus, development works raise the standard of living. The development activity of the environment refers to the modernization of the environment. The conservation activity of environment refers to the preservation of natural habitat with maximum utilization of the resources without making much harm. Development activities of environment always focus on the development without letting it harm. Population, environment and development have very close relationship with each other. The use of natural resources increases due to population growth. The uses of land, water, etc. increases to grow food subsistence. Similarly, population growth causes the growth of poverty, hunger, disease, illiteracy, etc. If the growth of population goes on, the needs of human cannot be fulfilled from natural resources. The development activities like construction of road, increase in agricultural production, production of industrial materials, export of manufactured goods, etc are necessary to be operated in the country for economic development. Such development activities provide employment to people. Skill is developed in them. The level of their work increases. It results the economic development of a person, society and country. The life standard of people does not change without the developmental activities. Hence human should pay attentation to their present and future generations to mention balance in population, environment and development activities. It possible only when the people conduct development works by using their rights rationally. Economic development of country Development work is very important for the progress of the country. Development work is important for the country because development works like agriculture, operation of industry, production of electricity, tourism, construction of road, etc. help in promoting income generating activities. From these works economic development can be observed. Such development activities provide employment to people. Skill is developed in them. The level of their work increases. It results the economic development of a person, society and country. The life standard of people does not change without the developmental activities. Similarly transportation for goods from one place to another becomes easier. Basic goods and services are required for livelihood of people. Food, clothes, shelter, education, health services, drinking water, hygiene, fuel, entertainment, safety, etc are basic things; the first and primary goal of development is to fulfill these basic needs of people. Various development and construction works help to fulfill the basic needs. Each country has its own kind of geographical structure. It affects the development works. Development activities should be operated in different parts of the country considering the geographical situation. It helps to distribute facilities in all regions. It helps to maintain the balance of population distribution. Development activities are essential for the development of the society. Development works encourage people to utilize the resources like land, water, forest, etc. The development helps to make the people self dependent. Economic status of people will be improved. It brings change in the lifestyle of people. Thus, it will help to protect the environment if the feeling of environment conservation can be aroused in people. Infrastructure of development: Infrastructure of development refers to the essentials that include physical, economic and human resources aspects without which the development activities are impossible. Types of infrastructure development are as follows; 1. Human resources: Skilled manpower needed to conduct the development works. The human resource related to different sectors such as education, health, communication, science and technology are to be developed. 2. Physical aspect: The road, bridge, canal, drainage, building, electricity and commutation etc. can be taken under physical-infrastructure. Development works provide facilities to people. Various development and construction works help to fulfill the basic needs. Development activities are essential for the development of the society. The development helps to make the people self dependent. It brings change in the lifestyle of people. 3. Social aspect: Development activities are essential for the development of the society. Development works encourage people to utilize the resources like land, water, forest, etc. The development helps to make the people self dependent. Economic status of people will be improved. It brings change in the lifestyle of people. Thus, it will help to protect the environment if the feeling of environment conservation can be aroused in people. 4. Economic aspect: The development activities like construction of road, increase in agricultural production, production of industrial materials, export of manufactured goods, etc are necessary to be operated in the country for economic development. Such development activities provide employment to people. Skill is developed in them. The level of their work increases. It results the economic development of a person, society and country. The life standard of people does not change without the developmental activities. Urbanization: The process of changing remote village areas into a place with various facilities is called urbanization. People who are living the life of misery even without basic facilities have thought for few facilities to make their life very comfortable one. So people when started getting few facilities thought for more and more because it is the nature of human to demand more and more. No human can stay satisfied. So due to the nature of human they started to carry out developmental activities for their benefit. They started making the remote places full of facilities. However in context of Nepal due to unplanned urbanization various difficulties have aroused in different places. In such way urbanization started taking place. Unmanaged urbanization has main effects like, Lack of facilities, Unhealthy Resistance, Adverse effect on health, improper distribution of population, Social disorders, and Environmental degradation. Unmanaged urbanization is controlled by sustainable development. Sustainable development is also termed as meaningful development. Due to sustainable development of the places there have been very smooth running of life in various countries of the world. So sustainable development should be initiated in order to achieve long term development from which different generations can be benefitted. It is very necessary and in a way compulsory to integrate the principles of sustainable development with the development activities because of the following reasons. The principles of sustainable development are as follows: 1. Conservation of ecosystem, 2. Sustainable development of society, 3. Conservation of biodiversity, 4. Control of population, 5. Development of human resource, 6. Increase in public participation, 7. Conservation of cultural heritage, 8. Limit of development under the carrying capacity of earth Any four of them are described as follows: Conservation of ecosystem; The main objective of sustainable development is to protect the earth. It is to keep retaining it. Various ecosystems like water and land ecosystem should be protected to retain the earth. Sustainable development of society: Social development works should be operated for sustainable development. These development works should be sustainable. Life standard of people should be improved for this. Sustainable development of the society can be enhanced by providing education, health, employment, security, etc. Similarly, various communities existing in the society should be involved in environment conservation works. The altitude of respect toward all kinds of living beings in earth should be developed in people. Conservation of biodiversity: It is necessary to protect all living things in the earth for sustainable development. Human should learn to protect natural resources which help to protect animals. National and international programmes should be undertaken to protect them. It is essential to maintain coordination between such programmes. Control of population: Human survives utilizing limited means and resources existing in the earth but with the growth of population, human needs like food, habitat, facilities, etc are also increasing. The means and resources existing in the earth not are increased according to the need of people. Therefore, control and management of population is essential for sustainable development which supports to maintain balance in the environment. Sustainable development Developmental activities should be in accordance with the bearing capacity of environmental sources. Natural resources in environment should not be used excessively to fulfill the needs of increased population. Excessive use of sources affects environment adversely and it will be difficult for animals to live. The concept of sustainable development has been developed to prevent these problems. Problems that arise in the process of development can be solved during the same period if the objectives of sustainable development programmes followed. It is very necessary and in a way compulsory to integrate the principles of sustainable development with the development activities because of the following reasons. The importances of sustainable development are as follows: 1. Proper use of resources Sustainable development suggests common people that there should be minimum use of any resources as far as possible. This will definitely lead towards the proper use of natural resources. 2. Feeling of responsibility Sustainable development changes the knowledge, skill and vision of people. It makes us feel the responsibility of utilization and conservation of natural resources. In this way the feeling of responsibility gradually increases. 3. Development of basic aspects Sustainable development emphasizes the development of essential aspects of human life like health, education, agriculture, tourism, social improvement, etc. These aspects should be developed in integration with protection and promotion of environment. 4. Participation in development Public participation is one of the most important principles of sustainable development. Priority should be given to public for the achievement of targets of any development work. This will increase the participation of people in development. 5. Demarcation of development activities Limited but effective means and resources are enough to fulfill basic requirement of human beings but they begin to perform more development activities inspired by greed. The means and resources which are not renewable go on finishing by their excessive use. 6. Long term vision Sustainable development forwards the vision of social and economic development without destroying the means and resources available on the earth. It attempts to develop the concept in all people about the preservation and retention of present works and resources for the future generations too. Therefore, sustainable development contributes to the conservation of environment by developing long term thought. Disease, Nutrition, Tobacco, Alcohol and Drugs Disease, Nutrition, smoking and narcotics Any change from the normal stage that causes discomfort or disability or disturbs the health called a disease. All human disease can be classified into following; 1. Congenital Disease: They are anatomical or physiological abnormalities present in the person from birth also called natural diseases. For example; sickle cell anaemia, diabetes mellitus, haemophilia , etc. 2. Acquired disease: These are acquired by the person at any time after birth. They are of two types namely; communicable and non- communicable. Types of disease: A. Communicable and B. non- communicable disease Communicable and non- communicable disease Diseases which are not transmitted from one person to another through any media are called non communicable diseases. It is believed that non communicable diseases are mostly the result of physiological disturbances, genetics, lifestyle, negligence and nutritional disorders. In some of the diseases, physiological function of our body system looks disturbed whereas in some of the diseases weakness and disabilities in organs are observed. The diseases like cancer, diabetes and asthma are the examples of non communicable diseases. Some of the communicable diseases may develop due to nutritional disturbances. Non communicable diseases are considered more dangerous than communicable diseases because the result of psychological disturbances, genetics, lifestyle, negligence and nutritional disorder. Non communicable diseases mostly have chronic nature such as cancer, Diabetes, so far no perfect cure has been found for such diseases. Modes of transmission of communicable diseases: Modes of transmission of communicable diseases are; 1. Contact transmission 2. Food and drinks 3. Air-borne infection 4. Insect born infection 5. Transplancental transmission 6. Skin infection 7. Transmission of contaminated blood 8. Transplantation of infected organs Communicable diseases Typhoid It is one of the communicable disease and commonly called Enteric fever or Salient fever. Symptoms: At the beginning slow fever follow higher fever, headache, sweating, chill fever, nausea, gastro intestinal problems, slight abdominal pain, diarrhea, heart beat raises, number of WBCs reduces about 3000 per cubic mm, swelling of liver, spleen, loss of appetite, body weight loss and at the chronic stage blood may comes out in the stool shows ulceration in the intestine etc. Causative agent: The main causes of the Enteric fever is due to bacillus called salmonella of enterobacterioceae group. Salmonella constitute species; S.paratyphi S.typhi S.enteridis S.typhimurium Shape and size: cylindrical or thread like, 3-4 µm. Salmonella in patient blood can be easily identify by culturing blood to 24-48hrs. Typhoid is also commonly called water borne disease because bacteria transmit very fastly through water media or any other contaminated foods. Control Measures: 1.Patient must be isolate from other family members. 2.Patient belongings should sterilized well the direct sunlight for 4-6hrs. 3.Patient belongings can be treat by 1% phenol solution or dettol solution. 4.Patient urination and solid waste should be disposed scientifically. 5.Live in most hygienic way is the best control method. Treatment: The conformed typhoid should be checked by physician and medicines are given according to the advised of physician. a.Cetamol b.antibiotics as ciprofloxacin c.chlorophenical Ascariasis Commonly called as warm disease or pet disease of South asian countries specially India, Nepal, Bangladesh, etc. Symptoms: In the children: very acute in children, expose gastro- intestinal disorders, severe abdominal pain, continous crying habit, eye balls looks like xeropthalmia, belly protrude out, nausea, vomiting, diarrhea, coughing, excessive growth of parasites may comes out from the mouth during vomiting, body weight loss, loss of appetite. In adult: Disease is mild, expose slight pain in the abdomen, chances of pharyngitis, laryngitis, nausea, loss of appeitite,etc. Causative agent: Caused by endoparasites Ascaris lumbricoides commonly called roundworm. Shape: body is long, cylindrical, unsegmented, colourless, sexes are separated ,etc. Male: short with posterior end cured have a pair of pineal seta as copulatory organs and female is long, both ends straight, complete life cycle in 2 or more hosts. Its Juvenile stage is the main which reaches the blood vessels of brain may cause brain cyst. Site or location: Intestine, Ileum and colon Control Measures: 1.Live in most hygienic way. 2.Scientific disposal of solid wastes. 3.Sterilization of foods before feeding. 4.Nails of the children must be cut. 5.Education about impact of the disease should be known to common people, etc. Treatment: For children: antiwar syrup of Albendazole or Hebendazole. For adult: tabs of Albendazole, Mebendazole, Piperizine. Tuuberculosis: Tuberclosis (T.B) is one of the very common communicating diseases, especially in village areas. It is said that more people died of T.B then other diseases in Nepal. Before 1960s T.B is the most dangerous diseases because of unknown treatment. From 19601970 yrs. Are called golden year of diseases, because most of the treatment of the diseases were discovered. Symptoms of the disease: Based upon the symptoms T.B is categorized in to two types. 1.Pulmonary T.B: Gradually low fever raises to 105-106o F, increases in the chest pain, continuous coughing, body weight drastically looses, patient body looks skinless, appearances of fine holes in the lungs and at the coma, heart beat increases, pulse rate increases, fresh blood releases continuously in the sputum finally dies. 2.Extra pulmonary T.B: a.Skin T.B: Change the colouration of skin wrinkling skin, skin damages etc. b.Muscular T.B: Frequent muscular cramps, muscles damages due to tuber cluing chemical secreted by the agent. c.Blood T.B: Fever ups and downs, no. of RBCs Reduces, lead anaemia, etc. d.Abdominal T.B: Undigestion, gastro intestinal problem, stomach pain etc e.Brain T.B: loss of memory, Thinking dullness, body lethargy. f.Bone T.B: low production of RBCs and WBCs, slow fracture heal up, etc. Causative agent: The main cause of T.B is due to Bacillus tubercle commonly known as Mycobacterium tuberculosis of the enterobacteacea group. It is common in man but in other domestic animals infected by M.bovis. Modes of infection: T.B is highly infectious diseases which can easily transmitted through any infective media such as infected food materials, vegetables, water, milk, patients belonging infected sputum, etc. Incubation period: Depending upon the site of infection incubation period of the bacteria changes, the average time period is about 4-6 weeks. Control measures: 1.Due to infectious diseases, patient should be keep in isolation. 2.The belongings of the patient should be sterilized well. 3.Disease can be conform by skin inflammatory test. 4.Patient should keep in rehabilitation or completely in rest. 5.Patient should take BCG vaccine. Treatment: T.B can be cured completely either in primary stage or in secondary stage. If the patient is in primary stage, medicines are given at least for 9 months and in secondary stages medicine should given 18 month regularly on the basis of age, weight of the body. Major medicines: Refampsin capsule, Isonex tab., Ethambutol tab, pyraginamide tab, streptomycin injection.etc AIDS (Acquired Immune Deficiency Syndrome): It means with the loss of body immunity after the birth whose exact fact and treatment unknown. It is believed that an AIDS disease was transmitted by certain green monkeys found in central Africa. The first AIDS patient was found in Haiti, later in 1981 AIDS patient was identified in loss Angle USA. From European countries and after 1985 reported from Asian countries. In Nepal First AIDS patient was declared in 1988 from Biratnagar quarantine office. General symptoms shown by the AIDS patient by checking the test in the blood 1.Unexplained long term fever-low or high 2.Unexplained loss of body weight. 3.Change in voice nature. 4.Appearence of glands in the body. 5.Appearence of white or pink spots in around the mouth cavities or in the abdominal region. 6.Maximum dancing night sweating and thirst. 7.Unexplained long term nagging cough. Symptoms shown by the confirmed AIDS patient called ARC diseases. Patients enter into ARC when damages T lymphocytes of the blood. 1.Diarrhoea or dysentery. 2.fever low or high frequently. 3.Suceptive to any diseases due to loss of body immunity. 4.Partial body paralysis sometimes whole body paralysis, dull memory, body lethargy, etc. 5.loss of body weight. Mode of infection: 1.Person having the habit of polysex. 2.Person having the habit of homosex. 3. Person having the habit of drug addiction. 4.Transfusion of infected blood. 5.Use of single needle or operating equipment for several times. Causative agents: Main causes of AIDS is virus, named as human immune virus(HIV), Human T-lymphocyte virus HTLV, Human lymphodenopathy associated virus HTLAV etc. Control measures: 1.Stop polysex and homosexual habit. 2.Check the blood before transfusion. 3.Use of sterilized equipments. 4.Give up drug addication. 5.Use condom during sex with unknown person. Treatment: Still there are no such drugs yet discovered which can completely cure AIDS. The drug available in the market are only to extend lifespan. Available Drugs: Azidothymidine(AZT) or Zidovudine, Rebavarium. Didonosine(DDS) and Zalcitabine. Non communicable diseases Cancer: Hippocrate was the first who gave the word karkinos or cancer diseases. Later karkinos word change in to carcinomes which means cancer in the epithelial tissue. Cancer is non communicable but most dangerous diseases after AIDS. Cancer is mainly two types; 1.Benign cancer: It is not dangerous cancer in which cells grows within limited area by connective tissue. At the place of growth may or may not have pain. In this type cell never migrate from one organ to the next. It is not fetal. 2.Malignant cancer : Malignant cancer is commonly called as true cancer which also called tumor. On the basis of the site, cancer can be classified in to following types; A.Carcinomas cancer: Cancer in epithelial tissue. B.Leucomias Cancer: Blood cancer. C.Sarcomas cancer: Cancer in the bone muscles etc. D.lymphomas cancer: cancer in the lymph nodes or vessels. Symptoms: Early symptoms can hardly seen because primary stage of cancer do not exposes serious symptoms. Major symptoms are appears in secondary stages. The symptoms shown by secondary stage of cancer a.Blood cancer: Body temperature raises, swelling of body, body looks pale coloured, Similarly anaemia disease, no of RBCs reduce, etc. b.Abdominal cancer: Appearances of malignant tumor, gastro intestinal problem, nausea, vomiting, dysentery, diarrhea etc. c.Lungs cancer: Development of chest pain, coughing, Nagging or dry, development of fine pores in the lungs, lungs alveoli gradually filled with body lymph etc. d.Brain cancer: Mental retardness, slow body growth, abnormal size of the head, facial paralysis, check body movement or locomotion, etc. Causative agent: Till now, there is no such exact fact which causes cancer in the various organs of the body. There are many factors which causes are; 1.Smoking 2.Chewing of tobacco. 3.Physical Irritations or Injuries. 4.chemicals. 5.Ultraviolet Rays. 6.Viruses 7.Oncogenes. Symptoms of cancer; 1.Any thickening or lump in the breast or elsewhere. 2.Any change in a mole or wart. 3.Any wound that does not heal. 4.Unusual bleeding or discharge. 5.Persistant cough or hoarseness. 6.Any change in normal bowel habits. Diagnosis: Cancer can be confirmed on the basis of certain pathological examinations. These include biopsy, microscopic examination of body fluids, Blood studies and x-ray. Preventive measures: 1.To give up smoking and chewing tobacco as theses increase the changes of cancer. 2.To protect the body from excessive exposure of x-rays, ultra-violet rays, sunlight, etc. 3.To be aware of possible dangerous symptoms mentioned above. 4.To have regular medical checkup after age of forty. Treatment: The treatment of cancer varies according to the nature of cancer. The common weapons used to fight cancer are surgery, radiotherapy and chemotherapy. Nutrition: Nutrition is a process by which an organism obtains substances required for its proper growth, maintenance and to provide energy for all the activates. Nutrition includes food intake, absorption, assimilation, biosynthesis, energy metabolism, catabolism and excretion. Food or nutrient: Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. Functions of food: Food provides our bodies with what they need to; 1.stay alive, be active, move and work; 2.build new cells and tissues for growth; 3.stay healthy and heal themselves; 4.prevent and fight infections. Food of human consists of; 1.Carbohydrates: Carbohydrates are one of the main types of nutrients. They are the most important source of energy for your body. Your digestive system changes carbohydrates into glucose (blood sugar). Your body uses this sugar for energy for your cells, tissues and organs. Daily requirement of carbohydrates; Normal - 2400kcl/day Pregnant - 2400+300kcl/day Lactating - 2400+500kcl/day Infants - 90+110kcl/day Function of carbohydrates; Carbohydrates have five major functions within the body: 1.Energy supply, carbohydrates are the principle source of energy. 2.Avoiding the breakdown of amino acid for energy. 3.Avoiding ketosis from the breakdown of fatty acids. 4.Cellular and protein recognition. 5.Carbohydrates as building blocks. 6.Carbohydrates as reserve food as they stored in form of starch and glycogen. 2.Protein; Proteins are large molecules consisting of amino acids which our bodies and the cells in our bodies need to function properly. Our body structures, functions, the regulation of the body's cells, tissues and organs cannot exist without proteins. The human body's muscles, skin, bones and many other parts contain significant amounts of protein. In fact, protein accounts for 20% of total body weight. Protein is broken down in to amino acids. Amino acids: Amino acids are biologically important organic compounds composed of amine (-NH2) and carboxylic acid (-COOH) functional groups, along with a side-chain specific to each amino acid. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen, though other elements are found in the side-chains of certain amino acids. About 500 amino acids are known and can be classified in many ways Characteristics of amino acid; 1.These are the basic unit of protein. 2.These are colorless, crystalline solids. 3.These are soluble in water and insoluble in organic solvents such as alcohol, acetone, etc. 4.There are 20 types of amino acid in nature. 5.The simplest amino acid is glycine. Categories of amino acids; They are divided in to two classes. 1.Essential amino acids: Essential amino acids cannot be made by the body. As a result, they must come from food.The nine essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. 2.Nonessential amino acids: "Nonessential" means that our bodies produce an amino acid, even if we don't get it from the food we eat.They include: alanine, asparagine, aspartic acid, and glutamic acid. Sources of protein: The principle sources of proteins are both from plants and animals. In general the animal proteins are superior to plants proteins. There are two groups; a.First class protein: The protein containing all the types of amino acids. They are animal protein like egg, meat. b.Second class proteins: The protein do not containing all the types of amino acids. They are plant protein. 3. Lipids or fats: Lipids are a group of naturally occurring molecules that include fats, waxes, sterols, fatsoluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, phospholipids, and others. The main biological functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Lipids have applications in the cosmetic and food industries as well as in nanotechnology. Sources of fat: Cooking oil, butter, ghee, oil seeds, milk, meat, cheese, eggs, etc. Classification of lipids: 1. Simple On hydrolysis gives fatty acids and alcohol (trihydric or monohydric). Oils: Unsaturated fatty acid Fats: Saturated fatty acids Waxes: Fatty acids + mono or Simple glyceride: Contains same Mixed glyceride: Contains different fatty acids. Lipids: + glycerol. + glycerol, dihydric alcohol. fatty acids. . 2. Compound lipids: (Complex lipids): On hydrolysis gives phosphoric acid, various sugars, sphingosine, ethanolamine and serine in addition to fatty acids and glycerol. a.Phospholipid: Fatty acids + glycerol + phosphoric acid + nitrogenous base. e.g. Lecithin :Fatty acids + glycerol + phosphoric acid + choline Cephalin: Fatty acids + glycerol + phosphoric acid + ethanolamine. b. Glycolipids: Glycerol + fatty acid + Carbohydrates (on hydrolysis). They are sub classified as galactosyl diglyceride, cerebrosides and sulpholipids. c) Sphingophosphoiplds: Fatty acids + sphingosine + phosphoric acid + choline. 3) Derived Lipids: Hydrolytic products of simple and compound lipids i) Alcohols: ii) iii) Terpenoids Functions of lipids: 1.Lipid provide energy fuel. Glycerol Fatty and other sterol acids 2.lipid act as thermal insulator. 3.Tryglycerides stored in adipose tissue as principle food reserve. 4.Lipids serve as solvents for fat soluble vitamins like A,D, E , and K. 5.They absorb mechanical impact around organs like eyeball preventing external shock. 6.Lipoprotein can prevent bacterial disease. 4.Vitamins: A vitamin is an organic compound and a vital nutrient that an organism requires in limited amounts. An organic chemical compound is called a vitamin. Fat soluble vitamins: The fat-soluble vitamins, A, D, E, and K, are stored in the body for long periods of time and generally pose a greater risk for toxicity when consumed in excess than water-soluble vitamins. Eating a normal, well-balanced diet will not lead to toxicity in otherwise healthy individuals. However, taking vitamin supplements that contain megadoses of vitamins A, D, E and K may lead to toxicity. The body only needs small amounts of any vitamin. Vitamin A (Retinol): Vitamin A, also called retinol, has many functions in the body. In addition to helping the eyes adjust to light changes, vitamin A plays an important role in bone growth, tooth development, reproduction, cell division, gene expression, and regulation of the immune system. Sources: Fish, liver oil, egg yolk, butter, cheese, milk, yellow and dark green leafy vegetable, papaya, tomatoes , carrots, guava, mango, etc. Deficiency: Night blindness, Xerophthalmia, Reaterded growth, loss of glandular secretion, etc. Vitamin D: Vitamin D plays a critical role in the body’s use of calcium and phosphorous. It works by increasing the amount of calcium absorbed from the small intestine, helping to form and maintain bones. Vitamin D benefits the body by playing a role in immunity and controlling cell growth. Children especially need adequate amounts of vitamin D to develop strong bones and healthy teeth. Sources: Vitamin D is found in oily fish (e.g., herring, salmon and sardines) as well as in cod liver oil. In addition to the vitamin D provided by food, we obtain vitamin D through our skin which produces vitamin D in response to sunlight. Difeciency: Rickets or rachitis, Osteomalacea, teeth tetany. Vitamin E: It is also known as beauty vitamin because it maintains germinal epithelium of gonads for proper reproductive function. Vitamin E benefits the body by acting as an antioxidant, red blood cells, and essential fatty acids from destruction. Sources: About 60 percent of vitamin E in the diet comes from vegetable oil (soybean, corn, cottonseed, and safflower). Vitamin E sources also include fruits and vegetables, grains, nuts (almonds and hazelnuts), seeds (sunflower) and fortified cereals. Deficiency: Reversible sterility in females, Sperm sterility in males, Macrocytic anaemina, muscular dystrophy. Vitamin K: Vitamin K is naturally produced by the bacteria in the intestines, and plays an essential role in normal blood clotting, promoting bone health, and helping to produce proteins for blood, bones, and kidneys. Sources: Good food sources of vitamin K are green, leafy-vegetables such as turnip greens, spinach, cauliflower, cabbage and broccoli, and certain vegetables oils including soybean oil, cottonseed oil, canola oil and olive oil. Animal foods, in general, contain limited amounts of vitamin K. Deficiency: Causes blood clotting, Hypoprothrombinaemia, Haemorrhage, Water-Soluble Vitamins: These types of vitamins require regular supply in the form of dietary sources or supplements. These are nontoxic and easily absorbed into the body through the gastrointestinal tract and then disseminated in the tissues. Water-soluble vitamins are easily dissolved in water, it would be advisable not to overcook them and use the left over cooking water as healthy options in soups and sauces. Vitamin B 1 (thiamine): Part of an enzyme needed for energy metabolism, important to nerve function. Sources: Found in all nutritious foods in moderate amounts: pork, whole-grain or enriched breads and cereals, legumes, nuts and seeds Deficiency: Bery-bery, weight loss, weakness, nausea, constipation, etc. Vitamin B2 (Riboflavin): Part of an enzyme needed for energy metabolism; important for normal vision and skin health. Sources: Milk and milk products; leafy green vegetables; whole-grain, enriched breads and cereals. Deficiency: Cheilosis, Glossitis, Keratitis, Saborrhic dermatitis. Vitamin B3: Part of an enzyme needed for energy metabolism; important for nervous system, digestive system, and skin health. Sources: Meat, poultry, fish, whole-grain or enriched breads and cereals, vegetables (especially mushrooms, asparagus, and leafy green vegetables), peanut butter. Deficiency: Pellagra Vitamin B5: It act as cheek anti-dermatitis factor. Sources: Widely distributed in foods. Deficiency: Rare Vitamin B6: Part of an enzyme needed for protein metabolism, helps make red blood cells. Sources: Meat, fish, poultry, vegetables, fruits. Deficiency: Dermatitis, paralysis Vitamin B7: It directly participated in the carboxylic rexn. Sources: Liver, kidney, egg, yolk, milk, grains, etc. Deficiency: Acne vugaris, anemia, nausea, etc. Vitamin B9: It act s as the coenzymes for synthesis protein. Part of an enzyme needed for making DNA and new. Sources: Green leafy vegetable, cereals, liver, kidney, eggs, etc. Deficiency: marcocytic anaemia. Vitamin B12: Part of an enzyme needed for making new cells; important to nerve function. Sources: Meat, poultry, fish, seafood, eggs, milk and milk products; not found in plant foods. Deficiency: pernicious anaemia. Vitamin C: Vitamin C is a water-soluble vitamin that is necessary for normal growth and development. Water-soluble vitamins dissolve in water. Leftover amounts of the vitamin leave the body through the urine. That means you need a continuous supply of such vitamins in your diet. Sources: Cantaloupe, Citrus fruits and juices, such as orange and grapefruit, Kiwi fruit, Mango, Papaya, Pineapple, Strawberries, raspberries, blueberries, cranberries, Watermelon, etc. Deficiency: Anemia, Bleeding gums, Decreased ability to fight infection, Decreased wound-healing rate, Dry and splitting hair, Easy bruising, Nosebleeds, Rough, dry, scaly skin, Swollen and painful joints, Weakened tooth enamel. Minerals: Minerals are important for your body to stay healthy. Your body uses minerals for many different jobs, including building bones, making hormones and regulating your heartbeat. Macrominerals Major minerals Mineral Function Sources Sodium Table salt, soy sauce; large Needed for proper fluid balance, nerve amounts in processed foods; small transmission, and muscle contraction amounts in milk, breads, vegetables, and unprocessed meats Chloride Needed for proper fluid balance, stomach acid Potassium Needed for proper fluid balance, nerve Meats, milk, fresh fruits and transmission, and muscle contraction vegetables, whole grains, legumes Calcium Important for healthy bones and teeth; helps muscles relax and contract; important in nerve functioning, blood clotting, blood pressure regulation, immune system health Table salt, soy sauce; large amounts in processed foods; small amounts in milk, meats, breads, and vegetables Milk and milk products; canned fish with bones (salmon, sardines); fortified tofu and fortified soy milk; greens (broccoli, mustard greens); legumes Important for healthy bones and teeth; Meat, fish, poultry, eggs, milk, Phosphorus found in every cell; part of the system processed foods (including soda that maintains acid-base balance pop) Found in bones; needed for making Magnesium protein, muscle contraction, nerve transmission, immune system health Nuts and seeds; legumes; leafy, green vegetables; seafood; chocolate; artichokes; "hard" drinking water Sulfur Occurs in foods as part of protein: meats, poultry, fish, eggs, milk, legumes, nuts Found in protein molecules Trace minerals (microminerals) The body needs trace minerals in very small amounts. Note that iron is considered to be a trace mineral, although the amount needed is somewhat more than for other microminerals. Trace minerals Mineral Function Sources Iron Part of a molecule (hemoglobin) found in red blood cells that carries oxygen in the body; needed for energy metabolism Organ meats; red meats; fish; poultry; shellfish (especially clams); egg yolks; legumes; dried fruits; dark, leafy greens; iron-enriched breads and cereals; and fortified cereals Zinc Part of many enzymes; needed for making protein and genetic material; has a function in taste perception, wound healing, normal Meats, fish, poultry, leavened fetal development, production of sperm, whole grains, vegetables normal growth and sexual maturation, immune system health Iodine Found in thyroid hormone, which helps regulate growth, development, and metabolism Seafood, foods grown in iodine-rich soil, iodized salt, bread, dairy products Selenium Antioxidant Meats, seafood, grains Copper Part of many enzymes; needed for iron metabolism Legumes, nuts and seeds, whole grains, organ meats, drinking water Manganese Part of many enzymes Widespread in foods, especially plant foods Fluoride Involved in formation of bones and teeth; helps prevent tooth decay Drinking water (either fluoridated or naturally containing fluoride), fish, and most teas Chromium Works closely with insulin to regulate blood sugar (glucose) levels Unrefined foods, especially liver, brewer's yeast, whole grains, nuts, cheeses Molybdenum Part of some enzymes Legumes; breads and grains; leafy greens; leafy, green vegetables; milk; liver Balanced diet: A diet that consists of right amount of essential nutrients such as carbohydrates, proteins, fats, vitamins, minerals, roughage and water required by the body is called balanced diet. A balanced diet is important because your body’s organs and tissues need proper nutrition to work effectively. Without good nutrition, your body is more prone to disease, infection, fatigue, and poor performance. Children with a poor diet run the risk of growth and developmental problems. Bad eating habits can continue for the rest of their lives a person’s daily calorie intake should be based on age, gender, and physical activity level. Men generally need more calories than women, and active people need more calories than sedentary (inactive) people. Malnutrition: A term used to refer to any condition in which the body does not receive enough nutrients for proper function. Malnutrition may range from mild to severe and life-threatening. It can be a result of starvation, in which a person has an inadequate intake of calories, or it may be related to a deficiency of one particular nutrient (for example, vitamin C deficiency). Malnutrition can also occur because a person cannot properly digest or absorb nutrients from the food they consume, as may occur with certain medical conditions. Malnutrition remains a significant global problem, especially in developing countries. Marasmus: A rapid deterioration in nutritional status in a short time can lead to marasmus, one form of acute malnutrition. Marasmus is the most common form of acute malnutrition in nutritional emergencies and, in its severe form, can very quickly lead to death if untreated. It is characterized by severe wasting of fat and muscle which the body breaks down to make energy. Wasting can affect both children and adults. Kwashiorkor: Some children with acute protein-energy malnutrition develop oedema. Oedema is an accumulation of fluid in the tissue, especially the feet and legs. Such children may not lose weight when developing acute protein-energy malnutrition because the weight of this excess oedema fluid counterbalances the weight of lost fat and muscle tissue. These children may look fat or swollen. Such children have kwashiorkor. Drug abuse: Drug is chemical substances that alter the physiological state of a living organism. Drugs are widely use in medicine. The study of drug is called pharmacology. Causes of drug addiction: 1. A person may experiment because he or her friend suggests it. 2.To satisfy own curiosity. 3.For the feeling of relaxation. 4.To escape from a difficult situation. 5.In search of a more satisfying life. Types of drugs: According to the mode of action the psychotropic drugs are classified into two types; a.Narcotics drugs: It leads temporary feeding of cell being, freedom from anxiety, produces normal sleep and relief from pain. The excess dose of these drugs lead rate of respiration reduces, reduces, reduces cardio vascular activities etc. b. Stimulant or antidepressant drugs: These drug Commonly called as mood elevating drugs. The right dose of intake may increase self confidence and mental alertness. The drug of these group can be called as Amphitamins. Such as tea, coffee. Control measures of Drug addiction: 1.Treatment and hospitalization. 2.Rehabilitation 3.Psychological treatment 4.Imlemention of the strict rules and regulation. 5.Education and awareness program. Alcoholism (Alcohol addiction) Ethyl alcohol and alcohol is among the most commonly substances by human. Alcohol is manufactured by fermentation of sugar an organism like yeast. Alcohol addiction: The prolonged use of alcohol may lead the dependence of the body on it is called alcohol addiction. The reasons of alcohol addiction are; 1.Feeling of independence. 2.Overcoming frustration, failures and disappointments. 3.Desire of Excitement and to do more work. 4.Relief from pain and worries. 5.Curiosity and use of drink in social, cultural and religious function. Effects of alcohol drinks: 1.Ill-effects alcoholic drinks on individual and health: Alcohol causes ill effects on various organs like on a.Nervous system: Loss of will power, self control and judgment. b.On stomach: Alcohol causes secretion of gastric juices which causes gastritis problem. c.On liver: Liver changes alcohol in to highly toxic compound, which may the cause of death. d.On heart: It increases the blood pressure and adversely affect on function of hearth. e.On kidney: Alcohl interferes with the normal functioning of nephrons in kidney. f.Alcohol lowers the blood sugar level. g.On reproduction: In women, it particularly affects the ovulation and menstrual cycle. 2.Ill-effects of alcoholic drinks on family: Alcohol drinking has a socio-economic impact because excessive drinking or alcoholism affects the family, growth and development of children adversely. 3.Ill-effects of alcoholic drinks on community or society: Social crimes like corruption, rapes, accident, loss of social reputation and personality. Symptoms of alcoholism: 1.Loss of will power, self-control, judgment and emotional control. 2.Visual problem like blurred vision , double vision and improper judgment of distances. 3.Leads to neuritis, amnesia, gastritis. 4.Increase the blood pressure and lower the sugar level. 5.In women it effect on menstrual cycle. Control of alcoholism: 1.Treatment and hospitalization. 2.Rehabilitation 3.Psychological treatment 4.Imlemention of the strict rules and regulation. 5.Education and awareness program. Smoking The regular consumption of tobacco in form of either cigarette, or chewing causes dependency on tobacco is called smoking. In Nepal 55% of total population consumes tobacco. Among them 48% are below 15 years. Tobacco contains highly poisonous alkaloid drug called nicotine. Its smoke contains approximately 400 different chemicals. Such as formaldehyde, polycyclic hydrocarbons like tar, carbon monoxide, etc. Effect of Nicotine: 1.Stimulate the conduction of nerve impulses. 2.Stimulate adrenal medulla to secrete adrenaline hormone. 3.Increase rate of heart beat and blood pressure. 4.Increase constriction of blood vessels. Effect of smoking: Following diseases are associated with smoking 1.Cancer:Cigarete smoke contains chemical substances called carcinogens, which causes cancer. 2.Bronchitis: When person smokes, a tiny particles in the smoke get stuck on the lining of the trachea and bronchial tubes. 3.Emphysema: The breakdown of alveoli wall reduces alveolar surface of gaseous exchange. Eventually, lung tissues destroy so much and finally the patient dies. 4.Asthma: It is more serious diseases, the walls of bronchioles contract and the tubes become narrower. Breathing become diffucut. 5.Heart diseases: A chemical substance nicotine affects the heart, cause constriction of peripheral blood vessels and increases heart beat. Symptoms of smoking: 1.A nagging morning cough may be one of the sign of tobacco habit. 2.Shortness of breath, wheezing, etc. 3.Increases fatigue, decreases the smokers sense of smell and taste. 4.Dry mouth and lips and red eyes. Treatment: There are wide ranges of treatments like hypnotherapy, herbs, Acupuncture etc can help a smoker quit the habit. Community Health Community health Community is a collection of people living in a place within a particular environment. It may be population of different caste, ages, sexes, and nationality. Community health comprises activities of the people, for the people and by the people to identify the health problems, their causes and solutions for the modification and better improvement in personal and environmental health. The roles of community are: To provide facilities, manpower, logistics support and possible funds, The community should help the authority to decide the health priorities, Community may participate in decision making about its health services, It form the organization to solve the existing problems, It formulate the rules, regulations and ways for healthy living and practices. Thus the main idea of community health is the participation of all members of the community towards better health as much as possible. People should also aware of the health problems in the society and be able to contribute to the solution of the problems. We may summaries the importance of community health under following points; 1. Creation of healthy environment: As we study Community health comprises activities of the people, for the people and by the people to identify the health problems, their causes and solutions for the modification and better improvement in personal and environmental health. In this process, the idenitification of causes help to the organize the various activities as per the needs of the society by the people which leads towards the solution of the problems. Thus the studies of community health help to create healthy environment. 2. Development of healthy human resources: The good health of the citizens based on the practice of the Hygienic habits. So, every individual should have to understand the need and importance of personal hygiene and their contributory roles in the maintenance and development of community health. The practice of personal hygienic habit helps to maintain and uplift the standard of living. 3. Availability of health services; Study of community health helps to identify the health problems and their causes in every sector of the society. It also suggests the way to ensure the better health and healthy environment services. Community health advocates the availability of health services as a birth right of every individual. 4. Sentiment of social service: Study of community health helps to identify the health problems cannot be solved by individuals alone. It needs group efforts; it encourages the people to work as social activists. It also motivates the social activities to gather the individuals and work in organized form. This organized form help to established club, NGOs, INGOs which work in the society. Measure health problem of Nepal: Nepal is country with the increasing population. It has various types of culture. More than eighty percent of the people live in villages. People are economically backward. They lack the knowledge of scientific principles of diseases and maintenance of health. The health problems of the country are various and working out the health schemes efficiently becomes difficult. In this context a critical analysis of the Nepalese community presents some facts responsible for the poor standard of community health. Among the basic requirements of the people, education is an important need. Knowledge, skill and technology can develop through the media of education. It creates social, cultural, political awareness in people and makes them advance. Education plays an important role in the complete development of a human being. The education or literacy percent of Nepalese population is still very low. 39.6 percent of total population is only literate. Education helps to create social, cultural, political awareness whereas illiteracy does not help in developing awareness regarding the consequences of over population growth, environmental sanitation, superstition, hygienic habits, methods to present population growth and such other ways of living and planning for the development. Therefore illiteracy has been accepted as one of the major health problems of Nepal. Communicable diseases are not regarded as serious health problems in developed countries. In developing countries, however they are major health problems. The diseases like malaria, tuberculosis, leprosy, diarrhea, dysentery, cholera, meningitis, worm, typhoid, venereal diseases are the major causes of immature death in the rural population. A study shows that about 45000 children of Nepal die annually from diarrhea. HIV/AIDS and Hepatitis are widely spreading. However the prevalence of communicable diseases is not so endemic today compared to the past. In fact a high death rate communicable disease reflects a low level of community health. The effects of population increase on health are: a. The increased population demands more health services and facilities which is not possible due to economic and political constraints. b. The ever growing population has an adverse effect on national health facilities as well as personal health of each individual. c. The increased population needs huge resources to fulfill their basic needs as well as additional needs, which deteriorates the environment and affect the health of an individual. d. Overpopulation creates unsafe environments and unsafe environment is the causes of exposure to micro organisms, excessive radiation and health of an individual gets deteriorated. e. Nutritious food and balanced diet cannot be provided to every member of the society in a poor country like Nepal. The lack of nutritious food and balanced diet is the cause of several kinds of diseases. Major roles of family in the solution of health problem areas; 1. Family may help to understand the fundamental behavior patterns of the society. 2. Family may help to protect and promote the health f a child or a helpless and old member through proper care. 3. Family counseling may develop the understanding of healthy living and practices. 4. Family may manage the basic needs of their family members. 5. Family may set a norm of healthy living for the community. 6. Family may provide timely health care and treatment to their members. 7. Parents may teach quality education to their children for the social adjustment. Basic forms of available health services in Nepal areas; 1. Preventive health services: All those means, procedures, and ways adopted to safeguard people from the disease in advance is known as preventive health services. 2. Promotional health service: Promotional health services are those measures which intend to bring the improvement in the present health of the people. The maternal-child health care, communicable disease control programme, mid-day meal programme for the school going children, vitamin A project, etc. are some examples of promotional health services. 3. Curative health services; When treatment is given on the basis of diagnosis of the casualty after observation of various signs and symptoms or complaints of the patients, it is known as curative health service. 4. Health Centre: It provides basic health services, treatment and preventive health services. There is less number of beds for patients. There are 180 health centers. 5. Health posts: There are 699 health posts. It provides minimum medical and preventive health services to the people of the Ilaka through the medium level health workers. There is more number of beds for patients. Major health programmes of Nepal: In, fact as health service is one the essential services for human beings; it has been accepted as an integral part of human right. The major health programmes of Nepal, The health aims and strategies of Three Year Interim Plan are: 1. To upgrade the level of sub-health posts in accordance with the destiny and geographical remoteness to reach health post. To upgrade health institutions to primary health centers wherever there isn’t one in an election area. 2. To give priority to all those who are socially, financially downcast; women, indigenous people, dalits, muslims community, senior citizens and physically challenged in providing basic health service free of cost. 3. To make provision such that the free health services provided by governmental and private hospitals be made available to neighboring districts as well. 4. To make health services available to citizens in Far Western Region, Mid-Western Region and marginalized area by developing the infrastructure and increasing health service personnel. 5. To make alternative health services like ayurvedic medicine available to the citizens according to their choices. 6. To continue the services related to the eye run by non-governmental organizations and add more such programs for expansion. 7. To make child inoculation and nutrition more effective. 8. To increase the number of gynecologists in the district hospitals.