HLTC22H3 Chapter Notes - Chapter 1: Gerontology, Grip Strength, Hyperbolic Geometry

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20 Jun 2011
Chapter 1- Introduction and Basic Concepts In Aging
-how we age and the rate at which we age are balanced between resources to which we
have access and our exposure to various toxins, both of which are, in part reflections of
the choices we make
-psychosocial gerontologists have focused on describing what happens cognitively,
emotionally, and socially as we age; identifying factors that promote +ve aging or
increase the risk of –ve aging
-biogerontologists focus on describing what happens at the molecular, cellular, and organ
system levels; models emerging in that field emphasize factors that affect rate of aging
-health psychology & behavioural medicine provide clear documentation that
psychosocial factors can affect physical health
-the only problem that is necessarily related to older men is neuronal slowing; memory
problems, problems in grip strength, and decline in cardiovascular output is only seen in
older men with subclinical disease not healthy old men
-gerontology has recognized that interdisciplinary endeavours are required for
understanding the aging process
-many studies have demonstrated that many of the cognitive and physiological declines
associated with normal aging can be reversed
-age; number of years person has been alive cohort; group of people who share the same
birth year or historical event
-period effect; general shifts/temporary in the whole culture
-life span; absolute length of time member of a given species may live
-life expectancy; length of time an average member of a particular cohort can expect to
live (refers to age at which half of the cohort will have died)
-age-specific life expectancy; average number of years members of a given cohort who
have reached a specific age can expect 2 live
-morbidity; refers to illness as mortality refers to death
-incidence; number of new cases in a year prevalence; total number of cases of specific
disease in a population
-acute illness; self-limiting can be treated with medicine (ex. Pneumonia, influenza,
cholera, smallpox, scarlet fever) chronic diseases; incurable, treatment focus on the
management and delay of disability
ohowever acute and chronic illness can intertwine to produce a cascade of health
problems which can affect ability to function in social roles and to take care of
-functional health; ability to perform daily tasks ex shopping, grocery
-optimal aging; recognition that there may be different ways of aging well, ppl being with
different configurations of vulnerabilities and resources that affect how they age
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