1: Theories of Aging Flashcards
Define Ageism.
Ageism refers to prejudice against the aged.
“Old People” generalizations are ageism.
Elderly are likely to accept and internalize it.
Define Gerontology.
Gerontology is the study of both the aspects and consequences of old age.
It is the fastest growing specialty due to the “graying of America.”
Differentiate between Life Expectancy and Life Span.
Life Expectancy: The probable number of years remaining in life.
Life Span: The average or maximum amount of time an organism, material, or object can be expected to last.
How is Life Expectancy derived?
Life Expectancy is determined statistically, and is affected by factors, such as heredity, physical condition, nutrition, and occupation.
How many years are the Life Expectancy and Life Span of a human being?
Life Expectancy: ~70-80 years
Life Span: 140 years
List the five Biological Theories of Aging.
1: Wear & Tear
2: Free Radical Theory
3: Immunological theory
4: Neuroendocrine/ Neurochemical Theories
5: Programmed Longevity Theory
Describe the Wear & Tear (biological) Theory of aging.
- oldest theory
- aging is the result of repeated use and injury over time
- cells constantly wear out and repair themselves, but capacity of repair is exceeded
Give one example of the Wear & Tear (biological) theory of aging.
Osteoarthritis
Describe the Free Radical (biological) Theory of aging.
Products of oxidation result in cell breakdown.
Give two examples of the Free Radical (biological) Theory of aging.
Cancer, cataracts
Describe the Immunological (biological) Theory of aging.
Decline in immune system increases vulnerability to disease
How does gender play a role in the Immunological (biological) Theory of aging?
Women have a stronger immune system and therefore have a longer life expectancy
Describe the Neuroendocrine/ Neurochemical (biological) Theories of aging.
Exposure to hazards, such as carcinogens, sunlight, trauma, and infection, lead to aging.
Describe the Programmed Longevity (biological) theory of aging.
Involuntary inherited processes alter cellular or tissue structures, leading to aging.
Give an example of the Programmed Longevity (biological) theory of aging.
Genetics