| A | B |
|---|
| Life Span | is the uppert boundary of life, the maximum number of years an individual can liveabout 120 yrs |
| Life expectancy | the # of yrs that will probably be lived by the average person brn in a particular year |
| microbiological theories of aging | look within the body's cells to explain aging |
| cellular clock theory | Hayflick's view that cells can divide a max. of 100x & as we age cells divide less |
| free-radical theory | people age because inside cells, normal metabolism produces unstable oxygen molecules--free radicals that damage DNA |
| caramelization theory | excess sugars bind with proteins to form a sticky, weblike coating that builds up and stiffens joints, blocks arteries, and clouds tissue |
| chronic disorders | characterized by a slow onset and a long duration. Are rare in early adulthood, increase during middle adulthood, and become common in late adulthood |
| arthritis | inflammation of the joints accompanied by pain, stiffness, and movement problems, especially common in older adults |
| macrobiological theories of aging | examine life at a more global level of analysis than the cell |
| osteoporosis | an aging disorder involving an extensive loss of bone tissue. Main reason older adults walk with a stoop, women are esp. vulnerable |
