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Judgment on chronological age Prejudice & Prediction Demographic Pyramid (Age-Sex Pyramid becoming more square) Study of aging Demographic shift More older Less younger Calorie restriction (1,000 calories a day) Telomerase (Enzyme) Centenarians Gerontology (Scientific) Geriatrics (Medical) Taste, Touch, smell, hearing impaired 122 years = maximum human life span (Strategies) Diet: little meat or fat (more vegetables) Work Family (Social activity) Exercise Relaxation Demeaning way of speaking to older adults Elderspeak Ageism Osteoporosis (Porous, fragile bones) Wear & Tear Theories of aging Genetic clock Immune system "T" cells (Thymus) Attack infected cells "B" cells (Bone) Creates antibodies destroys bacteria & viruses Types of aging Secondary (Specific illness) Cardiovascular Disease Aging & Disease Cell replication problems Can lengthen telomeres may slow aging Senses 23 - Late Adulthood Biosocial Development Hayflick Limit (About 50 times in humans) Telomeres (End of chromosomes) -Shortening causes death Primary (No specific illness) Universal, irreversible physical changes DNA regulates aging Cellular aging Oxygen "free radicals" (Antioxidants - Vitamins A,C,&E may nullify) = Loss of ability of cells to duplicate perfectly Compensation Compression of morbidity (Shorter illness before death) E.g. Driving slower Leading cause of death in men & women Risk factors: Diabetes Smoking Abdominal fat High blood pressure Lack of exercise High cholesterol