old age


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Related to old age: dementia

old age:

see geriatricsgeriatrics
, the branch of medicine concerned with conditions and diseases of the aged. Many disabilities in old age are caused by or related to the deterioration of the circulatory system (see arteriosclerosis), e.g.
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.

old age

the last part of the individual LIFE COURSE, associated with declining faculties, low social worth and detachment from previous social commitments. It is a social construct rather than a biological stage, since its onset and significance vary historically and culturally. See also AGEING, GERONTOLOGY.

Old Age

 

the period of life that inevitably sets in after middle age and is characterized by significant metabolic, structural, and functional changes in organs and systems that limit the adaptability of the body. Old age is a result of the dynamic process of aging. According to one system of age classification, 75–90 years of age is considered old age, and over 90, advanced old age.

An individual’s physical appearance, work capacity, and mental abilities change with old age, as does the course of many diseases. The skin becomes thinner and less elastic, and wrinkles and pigment spots appear. The hair turns gray and falls out. Visual acuity decreases, and lenticular opacity develops, often resulting in the formation of cataracts. An individual may grow shorter, and curvature of the spine is common. Joint mobility is limited, and bones become fragile and lose calcium. Mental performance declines, and a person becomes more easily fatigued, less able to recall recent events, and subject to sleep disturbances.

Because of their adaptive mechanisms, some old people can maintain a high level of intellectual activity for a long time and remain alert and creative. With old age, organs and tissues are less influenced by neural factors but are more sensitive to humoral influences. Age-related changes in the vascular wall and in protein and lipid metabolism contribute to the progression of atherosclerosis. Changes in digestion may cause vitamin deficiency. The rate of aging and extent of changes in organs and tissues vary with each individual. (For changes that occur with aging on the cellular level and in functional systems see.)

V. V. FROLKIS

old age

[′ōld ′āj]
(geology)
The last stage of the erosion cycle in the development of the topography of a region in which erosion has reduced the surface almost to base level and the land forms are marked by simplicity of form and subdued relief. Also known as topographic old age.
References in classic literature ?
I listened in admiration, and wanting to draw him out, that he might go on--Yes, Cephalus, I said: but I rather suspect that people in general are not convinced by you when you speak thus; they think that old age sits lightly upon you, not because of your happy disposition, but because you are rich, and wealth is well known to be a great comforter.
And now, when weighed down by the pains and aches of old age, when the head inclines to the feet, when the beginning and ending of human existence meet, and helpless infancy and painful old age combine to- gether--at this time, this most needful time, the time for the exercise of that tenderness and affection which children only can exercise towards a declining parent--my poor old grandmother, the devoted mother of twelve children, is left all alone, in yonder little hut, before a few dim embers.
Besides the usual deformities in extreme old age, they acquired an additional ghastliness, in proportion to their number of years, which is not to be described; and among half a dozen, I soon distinguished which was the eldest, although there was not above a century or two between them.
Chuang Tzu said: "Tao* gives me this toil in manhood, this repose in old age, this rest in death.
And so I come back from Cambell Fort, and no payment has been made, and Moklan is dead, and in my old age I am without fish and meat.
And now that five-and-fifty years were gone, she spoke of the dead man as if he had been her son or grandson, with a kind of pity for his youth, growing out of her own old age, and an exalting of his strength and manly beauty as compared with her own weakness and decay; and yet she spoke about him as her husband too, and thinking of herself in connexion with him, as she used to be and not as she was now, talked of their meeting in another world, as if he were dead but yesterday, and she, separated from her former self, were thinking of the happiness of that comely girl who seemed to have died with him.
Nature abhors the old, and old age seems the only disease; all others run into this one.
The chevalier, now fifty-eight years of age, owned to only fifty; and he might well allow himself that innocent deception, for, among the other advantages granted to fair thin persons, he managed to preserve the still youthful figure which saves men as well as women from an appearance of old age.
Years of imprisonment, and the still heavier burden of general incredulity and mockery, have combined with the natural decay of old age to erase from his mind many of the thoughts and notions, and much also of the terminology, which he acquired during his short stay in Spaceland.
I am forty years old now, and you know forty years is a whole lifetime; you know it is extreme old age.
There was something pathetic in it, as in the endeavour of an artist in his old age to equal the masterpieces of his youth - for the Tweed's famous passages were Captain S-'s masterpieces.
She lived with an elder sister, who had resigned herself contentedly to old age.