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."
Raising Your Mood Will Improve Your Health
From Science Daily earlier this month, in an article entitled Happiness Improves Health and Lengthens Life, Review Finds, we find more evidence that can help you increase your motivation to take your own mood seriously. This latest review is known as a meta-study. Here's a quote from the article: