Chapter 17 Flashcards
Gerontology
- scientific study of aging
CLSA (Canadian Longitudinal Studying on Aging)
- area of growth and development
- sense of satisfaction (fewer responsibilities)
Male steoistims
- Less likely to seek mental health advice, health care
- Tough it out mentality
- Men tend to have smaller social support groups = longevity
Hay-flick limit
- the number of times a cell can replicate
Telomere
- string of repetitive DNA, timekeeping mechanism
3 aspects of Telomere
- length decreases each time cell divides
- minimum telomere length, below = diseases
- shortening = lifetime stress
Reasons why we age at a biological standpoint?
- number of times they can replicate properly
- reduction in grey matter, neurologically not sending signals as efficiently
- lack of stimulation
Cellular damage
- loss of function = leads to aging
Cross-linking
- occurs when undesirable chemical bonds form between proteins or fats
Free radicals
foods, sunlight, X-rays, air pollution
Stem cells
- gradually lose ability to sustain body’s cell
- genotype determines max lifespan, variation in longevity of each individual = epigenetic errors
Self-Rated Health
Health is largest factor determining physical and mental status
Optimism
- less stress
- follow advice
- self-efficacy
Functional Status
- measure of an individual’s ability to perform certain roles/tasks
BADL
- basic tasks
- bathing, dressing
IADL
- complex tasks
- managing money, cooking, housework
Senior autonomy and independence = better _____
subjective
Frail elderly
- seniors whose physical and/or mental impairments are so extensive that they cannot care for themselves
Health Habits
- maintain when we younger = reaps benefit when older
- engaging when older still beneficial
- boosts cognitive function
- eating well
Physical Exercise
- improves strength and motor skills after only 12 weeks of exercise
- loss less height over 30 yr
- muscle mass retention
Physical Exercise
- improves strength and motor skills after only 12 weeks of exercise
- loss less height over 30 yr
- muscle mass retention
Four main changes occur in the brain
- reduction of brain weight
- loss of grey matter
- decline in density of dendrites
- slower synaptic speed
Less ____ atrophy occurs in those with more education
cerebral cortex
Slower synaptic speeds results in
slowing in reaction time