Chapter 5: Social Theories of Aging Flashcards
How is median age and dependency ratios related?
The higher the median age, the higher the old-age dependency ratio
What countries have the highest dependency ratios
Developed countries
Factors that influence dependency ratios
Longer life expectancies, higher birth rates, lower death rates
due to healthcare, education, sanitation, hygiene, conflict, socio-economic disparities, immigration, emigration
Why is US’s life expectancy not as long as other developed countries?
Diet, lifestyle, unequal access to healthcare, wealth inequality, sedentary behaviour
Life expectancy and per capita healthcare spending
US spends the most amount on healthcare, but have the lowest life expectancy
Active life expectancy
number of years spent in good health
Dependent life expectancy
number of years spent in poor health
Earth’s capacity
10 billion people
Does work help people live longer?
allows financial capability to live longer
but often associated with sedentary behaviour, physically demanding, chronic stress etc…so could be detrimental
having to work vs. wanting to work
work-life balance
4 Theories of Aging
Cellular aging (stem cell exhaustion, telomere shortening, proteins become less functional, mitochondrial malfunction, inefficient cell communication, imbalanced metabolism)
Wear and Tear
Free-radical/Oxidative stress
Immunological (cardiovascular, respiratory, nervous, immune, digestive, reproductive)
Metastatic aging
the spread of aging
all affect each other, which what causes aging
leads to biological aging, then death
What happens to the senses in aging
Sight: declines with age (presbyopia)
Hearing: declines with age (Presbycusis)
Taste: declines with age
Touch: declines with age
Smell: declines with age
Brain: slower with age, but not “dumber”
The scientific approach to theory development
A systematic attempt to explain why and how an age-associated change or event occurs
represents the core of the foundation of scientific inquiry and knowledge
Can a theory be entirely proven or disproven?
No, instead, through both quantitative and qualitative research, they gather evidence that may strengthen their confidence in the theory, or move them closer to rejecting the theory by demonstrating that parts of it are not supported
What is the reason for recent development of social theories?
began 1950-60s
- early social gerontological research tended to be applied rather than theoretical - it attempted to solve problems facing older people or help them adjust to problems that could not be solved rather than explain social phenomena