Ch: theories of aging Flashcards
why do we have a theory of aging
Can help explain the aging process
Helps to keep people healthy and active
Better understanding of factors that positively and negatively influence health
NO single known factor causes/prevents aging
Interrelated and interdependent
effects of aging from random assaults from environment over time
stochastic theories
types of stochastic theories
Wear and tear
Evolutionary
Cross-linking
Biogerontology
aging comes from complex, predetermined process
nonstochastic theories
types of nonstochastic theories
Programmed
Genetic
Autoimmune
Environmental
stochastic theory: threat to cellular division – overtime, our body begins to break down from slow damage
cross-link theory
Stochastic theory: Aging occurs due to repeated use and injury over time
wear and tear theory
stochastic theory: Differences in aging of species due to interplay between mutation and natural selection
People are living longer due to natural selection through reproduction
evolutionary theory
Stochastic theory: Study of the connection between aging and disease
Control or elimination of certain pathogens
People are living longer because of the prevention/control of pathogens
biogerontology
nonstochastic theory: Continual process of programmed cell death due to biochemical events that occur throughout life – not sudden
programmed theory
Nonstochastic theory: Animals and humans are born with genetic program/”biological clock” that predetermines life span; the process of getting old is under genetic control
Error theory: Genetic mutations cause organ decline from cellular mutations that causes aging
genetic theory
Nonstochastic theory: Reduction in the body’s immunological activities decreases autoimmune response –take longer to heal and recover – HAND HYGIENE
Cells undergo changes body misidentifies the changes develops antibodies
autoimmune theory
Nonstochastic theory: Ingestion of substances, crowded living conditions, air pollutants, high noise influence the aging process
environmental theory
Believes that it benefits society to disengage from older adults - very controversial
disengagement theory
limitations/criticisms of disengagement theory
Older adults can desire to remain engaged
Older adults can still be a valuable service to society without disengaging
Wouldn’t be necessary if society embraced the older adult
Persons of color and chronically ill persons not included in study for theory