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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.
APA style (also known as APA format) is a writing style and format for academic documents such as scholarly journal articles and books. It is commonly used for citing sources within the field of behavioral and social sciences , including sociology, education, nursing, criminal justice, anthropology, and psychology.
Active ageing (active aging in the US) is a concept recently deployed by the European Commission, the World Health Organization, and used also in Human Resource Management. This concept evokes the idea of longer activity, with a higher retirement age and working practices adapted to the age of the employee.
Activity theory (AT; Russian: Теория деятельности) [1] is an umbrella term for a line of eclectic social-sciences theories and research with its roots in the Soviet psychological activity theory pioneered by Sergei Rubinstein in the 1930s. It was later advocated for and popularized by Alexei Leont'ev.
The American Psychologist is the association's flagship, peer-reviewed journal. APA also publishes over 70 other journals encompassing most specialty areas in the field; APA's Educational Publishing Foundation (EPF) is an imprint for publishing on behalf of other organizations. [15] Its journals include: [16] Archives of Scientific Psychology
Stem cell theory of aging; Stereotype embodiment theory; T. Telomere theory of aging; V. Vital substance theory of aging; W. Waste product accumulation theory of aging;
The Journal of Aging and Health is abstracted and indexed in Scopus, PubMed, and the Social Sciences Citation Index.According to the Journal Citation Reports, its 2016 impact factor is 2.168, ranking it 24 out of 77 journals in the category "Health Policy & Services" [1] and 12 out of 32 journals in the category "Gerontology".
In 1968 it took the form and became known as the neuroendocrine theory of aging. [38] [39] [40] 1956 Denham Harman proposed the free-radical theory of aging and demonstrated that free radical reactions contribute to the degradation of biological systems. [41] The theory is based on the ideas of Rebeca Gerschman and her colleagues put forward in ...