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The continuity theory of normal aging states that older adults will usually maintain the same activities, behaviors, relationships as they did in their earlier years of life. [1] According to this theory , older adults try to maintain this continuity of lifestyle by adapting strategies that are connected to their past experiences.
Download as PDF; Printable version; ... Continuity theory; D. Disengagement theory; S. Selectivity theory (aging) This page ...
The activity theory and the disengagement theory were the two major theories that outlined successful aging in the early 1960s. [4] The theory was developed by Robert J. Havighurst in 1961. [ 1 ] In 1964, Bernice Neugarten asserted that satisfaction in old age depended on active maintenance of personal relationships and endeavors.
According to the continuity theory, in spite of the inevitable differences imposed by their old age, most people try to maintain continuity in personhood, activities, and relationships with their younger days. [18]: 614 Socioemotional selectivity theory also depicts how people maintain continuity in old age. The focus of this theory is ...
Download as PDF; Printable version; ... Aging by design theory; ... Disposable soma theory of aging; Free-radical theory of aging; G.
[7] Oxidation damage to cellular contents caused by free radicals is believed to contribute to aging as well. [ 8 ] [ 9 ] The longest documented human lifespan is 122 years 164 days, the case of Jeanne Calment , who according to records was born in 1875 and died in 1997, whereas the maximum lifespan of a wildtype mouse, commonly used as a model ...
According to this theory, life span development has multiple trajectories (positive, negative, stable) and causes (biological, psychological, social, and cultural). Individual variation is a hallmark of this theory – not all individuals develop and age at the same rate and in the same manner. [15] Bronfenbrenner's ecological theory
The free-radical theory of aging proposes that this damage cumulatively degrades the biological function of cells and impacts the process of aging. [18] The idea that free radicals are toxic agents was first proposed by Rebeca Gerschman and colleagues in 1945, [19] but came to prominence in 1956, when Denham Harman proposed the free-radical ...