TLC - L6 - Cell ageing Flashcards
Outline the theory of aging?
- Complex, universal process.
- Multifactorial nature.
- Failure in maintaing homeostasis.
What are the 2 biological theories of aging?
- Programme theory.
- Damage/Error theory.
What is programme theory of aging?
Ageing follows a biological timetable or internal biological clock.
What is the damage/error theory of aging?
Aging follows as a result of internal or external assaults that damage cells or organs so they can no longer funtion.
What is the psycho-social theory of aging?
It explains the thought process and behaviour of ageing individuals.
What are the 3 psychological theories of aging?
- Disengagement theory.
- Activity theory.
- Continuity theory.
What is the disengagement theory of aging?
Aging population systematically disengage from social roles due to the inevitability of death
What is the activity theory of aging?
Argues that staying mentally and physically active is important for happiness in an aging population.
What is continuity theory?
An aging population will tend to maintain the same activities, behaviors, personalities, and relationships of the past despite aging.
What are the 3 biological programmed theories of aging?
- Senescence (slowing of division) theory.
- Endocrine theory.
- Immunology theory.
What are the 6 biological programmed damage theories?
- Wear and Tear theory.
- Rate-of-living theory.
- Cross-linking theory.
- Free Radical theory.
- Error Catastrophe theory.
- Somatic Mutation theory.
What is the somatic mutations theory?
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