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This phenomenon is known as the "paradox of ageing". This may be a result of social comparison; [147] for instance, the older people get, the more they may consider themselves in better health than their same-aged peers. [148] Elderly people often associate their functional and physical decline with the normal ageing process. [149] [150]
Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1]
A biological explanation for memory deficits in aging includes a postmortem examination of five brains of elderly people with better memory than average. These people are called the "super aged," and it was found that these individuals had fewer fiber-like tangles of tau protein than in typical elderly brains.
In addition, perceptions of older adults in society will change, as the elderly are living longer lives and more active than before. [ 160 ] [ 166 ] Changing from a youth-focused culture to having a more positive attitude towards aging and being more respectful of seniors like Japan can help elderly Americans extend their life span and live out ...
However some data suggest that mild changes in orientation may be a normal part of aging. [52] [53] For example, Sweet and colleagues concluded that "older persons with normal, healthy memory may have mild orientation difficulties. In contrast, younger people with normal memory have virtually no orientation problems" [53] (p. 505). So although ...
Aging results in slowed reaction time in an aiming task for both eye and hand movements. Comparisons between young and old adults who have to follow a target only with their eyes or with a laser in their hand, show that parameters indicative of motor function such as velocity, duration, and amplitude of initial movement are unchanged.
An aging-associated disease (commonly termed age-related disease, ARD) is a disease that is most often seen with increasing frequency with increasing senescence. They are essentially complications of senescence, distinguished from the aging process itself because all adult animals age ( with rare exceptions ) but not all adult animals ...
The life expectancy of people with diabetes, which is 9.3% of the U.S. population, is reduced by roughly 10–20 years. [128] [129] People over 60 years old with Alzheimer's disease have about a 50% life expectancy of 3–10 years. [130]