In eight pages this research paper investigates the process of aging in a consideration of various physical changes. Fifteen sources are cited in the bibliography.
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from birth to maturation; and the second is aging, which entails, a decrease or leveling off in size or efficiency (Coni, et al, 1984). For human beings, signs of aging
begin to appear, typically, between the ages of 30 and 40. Grey hair begins to appear. The skin begins to lose elasticity, so that "wrinkles" appear. Other physical changes that
occur with age. Arcus senilis, for example, is a cloud ring that that forms around the cornea of the eye (Coni, et al, 1984). All of a persons
senses will begin to decline with age. Eyes start to lose their ability to adapt to darkness, and brighter light is required for reading (Coni, et al, 1984). Usually, hearing
declines and a person loses the ability to hear high frequency sounds. About half the taste buds are lost and the ability to detect odors also decreases with age
(Coni, et al, 1984). Movement becomes inhibited with advanced age. By the age of 80, for most people, about half the muscle cells have been replaced with different kinds
of tissue (Coni, et al, 1984). Collagen, a connective material that is made up largely of protein, is what usually occupies the space between cells. The process of aging
tends to make strands of collagen link up and becomes less elastic (Coni, et al, 1984). Women, in particular, tend to lose calcium as they age, which makes bones brittle
and more likely to break. Also, in the elderly, it is not usual for the body to lose much of its ability to fight infection (Coni, et al, 1984).
Some people erroneously believe that as a person ages, they lose the ability to learn; however, unless disease or injury interfere, an elderly person who has remained physically and mentally