A Review of over one hundred sixty studies has strongly tied happiness to longevity and better health.
ScienceDaily (Mar. 1, 2011) — A review of more than 160 studies of human and animal subjects has found "clear and compelling evidence" that -- all else being equal -- happy people tend to live longer and experience better health than their unhappy peers.
The study, in the journal Applied Psychology: Health and Well-Being, is the most comprehensive review so far of the evidence linking happiness to health outcomes. Its lead author, University of Illinois professor emeritus of psychology Ed Diener, who also is a senior scientist for the Gallup Organization, of Princeton, N.J., analyzed long-term studies of human subjects, experimental human and animal trials, and studies that evaluate the health status of people stressed by natural events.
"We reviewed eight different types of studies," Diener said. "And the general conclusion from each type of study is that your subjective well-being -- that is, feeling positive about your life, not stressed out, not depressed -- contributes to both longevity and better health among healthy populations."
