Late-life decline in well-being across adulthood in Germany, the United Kingdom, and the United States: Something is seriously wrong at the end of life.

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Abstract
Throughout adulthood and old age, levels of well-being appear to remain relatively stable. However, evidence is emerging that late in life well-being declines considerably. Using long-term longitudinal data of deceased participants in national samples from Germany, the UK, and the US, we examine how long this period lasts. In all three nations and across the adult age range, well-being was relatively stable over age, but declined rapidly with impending death. Articulating notions of terminal decline associated with impending death, we identified prototypical transition points in each study between three and five years prior to death, after which normative rates of decline steepened by a factor of three or more. The findings suggest that mortality-related mechanisms drive late-life changes in well-being and highlight the need for further refinement of psychological concepts about how and when late-life declines in psychosocial functioning prototypically begin.
Funding Information
  • National Institute on Aging (RC1-AG035645; R21-AG032379; R21-AG033109)
  • DIW Berlin
  • Max Planck Society
  • Pennsylvania State University
  • Federal Ministry of Education and Research