Gerontology

Gerontology is the multidisciplinary study of aging across the life course, including its biological, psychological, social, and demographic dimensions.

Biogerontology: The study of the biological mechanisms and processes of aging. It examines the biological dimension of aging within gerontology.
Age-friendly cities: Urban environments designed to support health, participation, and accessibility across older age. Gerontological evidence helps identify features that make cities workable in later life.
Élie Metchnikoff: A Russian-born microbiologist who coined the term gerontology and studied longevity and aging. His work helped name aging as a subject for systematic scientific study.
Geriatrics: The medical specialty concerned with health care for older adults. Its clinical focus contrasts with gerontology's wider study of aging.
Psychogerontology: The study of psychological processes and behavior in older adulthood and aging. It focuses on the psychological dimension of aging.
Long-term care: Ongoing assistance with health and daily activities for people with chronic illness or disability. Aging research informs how care needs arise and how services can meet them.
International Association of Gerontology and Geriatrics: An international organization that connects professionals studying aging and caring for older people. It institutionalizes collaboration across gerontology's disciplines and countries.
Life expectancy: The average number of years a person in a population is expected to live under specified mortality conditions. It is a demographic measure relevant to aging, not a complete account of aging itself.
Social gerontology: The study of the social conditions, relationships, and institutions associated with aging. It investigates how social life shapes and is shaped by aging.
Retirement: The transition from paid work to a life with reduced or no employment. Gerontology examines how retirement affects identity, income, health, and social ties.

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SupercentenarianNarrower topic: Supercentenarians are studied as an exceptionally long-lived group.