PHYSIOLOGY OF AGING
As we age, we undergo a number of physiological changes, which affect not only how we look, but also how we function and respond to daily living. Overall, the changes in the later life span described below involve a general slowing down of all organ systems due to a gradual decline in cellular activity. It should be noted that individuals experience these changes differently - for some, the level of decline may be rapid and dramatic; for others, the changes are much less significant. The effects of these changes also differ widely. While approximately 85% of older adults experience chronic conditions, only about 20% experience significant impairment in their ability to function. For those with disabilities this process may occur more rapidly.
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