Results 151 to 160 of about 3,247,413 (206)
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Biological age versus physical fitness age
European Journal of Applied Physiology and Occupational Physiology, 1989A population of healthy middle-aged (n = 69) and elderly men (n = 12), who participated in a health promotion program, was studied to determine whether really physically fit individuals are in good biological condition, and also whether improvement of physical fitness in the middle-aged and the elderly reduces their "rate of aging".
E, Nakamura, T, Moritani, A, Kanetaka
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Dermatologic Clinics, 1986
The authors outline the progression of thought on the mechanism of the aging process, giving emphasis to environmental factors that influence genetic events. Discussion is limited to those theories that explain fundamental causes of aging and have a firm thermodynamic basis.
A K, Balin, R G, Allen
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The authors outline the progression of thought on the mechanism of the aging process, giving emphasis to environmental factors that influence genetic events. Discussion is limited to those theories that explain fundamental causes of aging and have a firm thermodynamic basis.
A K, Balin, R G, Allen
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Assessing Biological Age: Reality?
Gerontology, 1995This paper is a short critical essay about the value of 'battery tests', to predict the longevity of groups and individuals. It takes a standpoint that there is a long history behind efforts to define the concepts of 'physiological age', and 'chronological age', and their relationships with 'lifespan'.
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Redundancy and Biological Aging
Science, 1963The relationship between aging and organizational redundancy in biological systems was investigated from the standpoint of information theory. A mortality rate function derived for a randomly deteriorating redundant system approximates observed mortality rates more closely than does the Gompertz function and indicates that variations in redundancy ...
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JAMA, 1974
AGING satisfies the major criterion of a normal physiologic process; it descends inexorably on each and every one of us. Whether this kind of normality is desirable is a debatable point. Teleological approaches are largely unsatisfactory because the nth stage of improved survival is immortality, which implies detrimental effects for the species in ...
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AGING satisfies the major criterion of a normal physiologic process; it descends inexorably on each and every one of us. Whether this kind of normality is desirable is a debatable point. Teleological approaches are largely unsatisfactory because the nth stage of improved survival is immortality, which implies detrimental effects for the species in ...
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Human Development, 1970
Aging in mammals appears to be an information loss, probably at the cellular or molecular level. The current models for this process and the prospects for its controllability are reviewed. Stochastic, developmental, clonal and immunological models of aging, which are not mutually exclusive, all offer possibilities for rate-modification in Man, with ...
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Aging in mammals appears to be an information loss, probably at the cellular or molecular level. The current models for this process and the prospects for its controllability are reviewed. Stochastic, developmental, clonal and immunological models of aging, which are not mutually exclusive, all offer possibilities for rate-modification in Man, with ...
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Assessing Biological Age: Practicality?
Gerontology, 1995There are many problems in measuring "biological" age rather than chronological age, not least the necessity of demonstrating that this measure has validity in terms of better predicting mortality or morbidity. This review considers nine problems in measuring biological age and attempts to provide a full or partial solution to these difficulties.
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Reappraisal of Biological Ageing
Nature, 1970LIVING systems depend on adaptive regulation, deterioration in which leads eventually to death. The incidence of most disease increases with increasing age, which suggests that progressive impairment of adaptive response is associated with many illnesses common to advanced age. One biochemical expression of this impairment is the age-dependent increase
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Aging: Biologic or Pathologic?
Hospital Practice, 1978If disease is only case casually related to aging, the prevailing strategy of dealing with each disease category is appropriate; if they are linked causally, the current strategy may not only be inappropriate but prove futile. The extent to which optimal gerontologic care can delay the onset of biologic deterioration, together with the use of short ...
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Biological anthropology and aging
Journal of Cross-Cultural Gerontology, 2005As the number of persons aged 65 and older is increasing dramatically in both developed and developing nations of the world, the health and well-being of elders has become a worldwide public health concern. Although older adults are now found in higher proportions across all cultures, the biology, behavior, and environment vary tremendously across ...
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