title: Behaviour and adaptation in later life.
abstract: The implications of three revolutions in current social scientific thinking about behaviour and adaptation in later life are discussed. A demographic revolution is occurring in all countries; the number of older persons is less important than their functional impairments. A knowledge revolution has laid the basis for realistic optimism about modifiability of aging processes. A revolution in expectations about the future of aging is occurring.
mesh_terms: D000223:Adaptation, Psychological / Q000502:physiology; D000368:Aged; D001519:Behavior / Q000502:physiology; D006801:Humans; D012917:Social Adjustment; D014481:United States