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Transcript
DRUGS - INDUCED CONSCIOUSNESS Psychoactive drugs are chemical substances that affect the brain functioning, causing changes in behavior, mood and consciousness. While these drugs can be used therapeutically to treat both physical and psychological disorders, they are also used recreationally to alter mood, perceptions and consciousness. We will divide the drugs into 5 categories, depending upon their effects on the mind and body: depressants, narcotics, tranquilizers, stimulants and hallucinogens. The effects of some of these drugs can cause addiction, a physical dependence on a drug. Addicts have no control over their bodies´ need for the drug, feel compelled to seek it, and can suffer severe physical pain if they don’t get it 1. Depressants Depressants or sedatives are drugs that inhibit the function of the central nervous system and are among the most widely used drugs in the world. Drugs that are classed as depressants include alcohol, barbiturates and benzodiazepines. These drugs operate by affecting neurons in the CNS, which leads to symptoms such as drowsiness, relaxation, decreased inhibition, anesthesia, sleep, coma, and even death. All depressants also have the potential to be addictive. Alcohol - While alcohol is a legal drug, it also has a high potential for abuse, which has high social costs. By using alcohol reaction time slows, and coordination and judgment are impaired. Some drinkers become aggressive and violent. Alcohol is abuse, and alcoholism, or addiction to alcohol, is a major problem in the United States. The effects of alcohol abuse are great: hypertension, liver damage, and even brain damage are just some of the physical affects, the psychological toll is great, too, with alcoholism being cited as a factor in many divorces and lost jobs. Barbiturates - Barbiturates or „sleeping pills“ are a type of CNS depressant that causes euphoria and relaxation when taken in low doses. During the early half of the 1900s, barbiturates were viewed as a safe depressant, but problems with addiction and deadly overdoses soon became apparent. Barbiturates have a dramatic impact on sleep patterns, resulting in suppressed REM sleep. Because the potential for addiction and misuse is so high, barbiturates are commonly replaced with benzodiazepines. Benzodiazepines - Benzodiazepines are widely prescribed to treat anxiety and sleep disorders. Because of their low toxicity and high effectiveness, benzodiazepines have been popularly used as a short-term treatment for anxiety problems and insomnia. However, their potential for dependency makes them a less preferred long-term treatment for such things as generalized anxiety disorder, post-traumatic stress disorders, and panic disorders 2. Stimulants Stimulants are a class of psychoactive drug that tend to increase activity in the brain. These drugs can temporarily elevate alertness, mood and awareness. While some stimulant drugs are legal and widely used, all can be addicting. Drugs that are classed as stimulants include caffeine, nicotine, cocaine, amphetamines and some prescription drugs. Caffeine, a common stimulant, is found in coffee, tea, chocolate, and in some soft drinks and nonprescription medicines. Most dangerous are amphetamines and cocaine. Amphetamines make users feel invincible and energetic. Greater doses, however, cause irritability, anxiety, paranoid fears, and auditory hallucinations. Cocaine initially causes euphoria and increases confidence, but continued use produces frightening hallucinations. 3. Hallucinogens Psychedelic drugs, or hallucinogens, are psychoactive drugs that affect thinking, alter moods and distort perceptions. Drugs that are classed as psychedelics include marijuana, LSD, psilocybin (derived from a type of mushroom) and mescaline (found in the peyote cactus). The using of hallucinogens makes physiological changes, blood pressure increases, the pupils dilate and body temperature rises. The users experience little or no fatigue and can go for long periods without sleep. Marijuana – marijuana is the most used hallucinogen. It is taken from plant cannabis sativa. Its effects vary from person to person and seem to depend upon the mood of the smoker prior to smoking and the environment in which it is smoked. There are several negative effects of marijuana which you should be aware of. Recent studies indicate, for example, that the active ingredient, THC, accumulates in the tissues of the body. High levels of THC impair concentration and interfere with short-term memory processes. Prolonged psychological effects can include psychotic reactions, personality changes, and changes in life style. LSD – LSD is synthetic and it has to do with firing of nerves. It is thought that LSD interferes with this function, producing a range of behavior changes from intense excitement and heightened sensations to depression, fear, and in some instances, psychotic reactions. It becomes increasingly difficult to distinguish among past, present, and future. The user sometimes needs other people to help monitor what is inside and what is outside „self“. Depending on dosage, acute effects can last from four to eight hours. 4. Narcotics Narcotic drugs, which include opium, morphine, and heroine, act on the CNS and can be used medically to ease pain. The user becomes emotionally detached from pain, and a sense of general well-being occurs. But these drugs are also powerfully addictive. The body becomes dependent upon them for its normal functioning, and larger and larger doses are required to produce the same effect. Withdrawal symptoms are acute, and death from overdose occurs frequently. 5. Tranquilizers Tranquilizers, like librium, vallium, etc., are prescription drugs that calm anxieties and tensions. Users perceive anxiety-producing events but remain emotionally detached from them. For this reason, tranquilizers can be destructive to psychological health if used for a prolongs length of time. They tend to alter reality in our minds instead of allowing us to use our minds to alter the unpleasant reality in our lives. Long-term use can result in lack of coordination, memory loss, and impaired judgment.