From Marginal Revolution:
A new Brigham Young University study adds our social relationships to the short list of factors that predict a persons odds of living or dying. In the journal PLoS Medicine, BYU professors Julianne Holt-Lunstad and Timothy Smith report that social connections friends, family, neighbors or colleagues improve our odds of survival by 50 percent.
This study joins a growing body of evidence that the strength of social networks is important for longevity and quality of life. We are, after all, social animals.