Love and Survival : The Scientific Basis for the Healing Power of Intimacy
by Dean Ornish
Perennial; (March 1, 1999) ISBN: 0060930209
"Dean Ornish discusses this point at length in his book Love and Survival. There is quite a lot of scientific documentation he cites that he claims supports the notion that being connected socially, having intimate, satisfying relationships etc are conducive to longer, healthier lives. He insists that this is more important than any other factor including diet and exercise. This from a diet/exercise guru...The citations are plentiful, but I'm not sure how reliable these many studies are."