HDE 100C: Adulthood & Aging

EXAM 1

older adults

65+

young old

65-74

old old

75-84

oldest old

85+

life expectancy

the average number of years remaining for an individual at a particular age.

life span

the average duration of life for any given species.

maximum life span

the member of a species that has lived the longest.

centenarians

people that live to 100

what percentage of centenarians are women

80%

estrogen is a

protective factor

population pyramid

compares the same characteristics across two groups (ex: male and female)

diversity index

the likelihood that two people chosen at random from a given population will be of different racial ethnic groups.

diversity index

way to quantify the amount of diversity in a given group.

percent of women with a disability

43%

percent of men with a disability

40%

why life expectancy has risen

nutrition, improved maternal care, decreased early life deaths, better healthcare, more health education

consequences of people living longer

find resources to care for loved ones, more time to enjoy with loved ones, more need to plan for retirement, career opportunities, wisdom

geriatric/gerontology medicine

healthcare for older adults

inter-individual differences

differences in between people

intra-individual differences

differences in between people

ontogenesis

development of an individual organism.

senescence

cells stop dividing due to random/unplanned damage to our DNA.

oxidative damage

theres an imbalance between the amount of free radicals in the body and the bodies ability to neutralize them. (from diet, x-rays, metabolism, and air pollution.)

lipofuscin

a yellow-brown byproduct due to aging in cardiac muscle.

lysosomes

where waste leaves the cell.

time-clock theory (Hayflick limit)

the idea that normal cells only replicate up to around 50 times.

telomere theory

telomeres shorten with age.