Summary: Ch 17
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1 CH 17
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Reasons there are differences in life expediencies
health conditions and medical care
ethnic differences
gender -
Individuals 100 years and older
Centenarians -
Increased rate of centenarians each year by __
7 percent -
Increased number of centenarians due to
diet
low-stress lifestyle
caring community
activities
spirituality
compression of morbidity -
Compressing the time horizon between the onset of chronic illness or disability and the time in which a person dies
Compression of morbidity -
Biological theories of aging include
Evolutionary theory
Cellular clock theory
Free-radical theory
Mitochondrial theory
Hormonal stress theory -
Benefits conferred by evolution decline with age because natural selection is linked to reproductive fitness
Evolutionary theory -
Age makes cells less capable of dividing; telomeres
Cellular clock theory -
Tips of chromosomes; DNA sequences that cap chromosome
Telomeres -
Damaging can lead to a number of disorders, including cancer and arthritis
Free-radical theory
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