5 Ways to Heal Yourself and to Stay in Love 1. Connection is Medicine: The longest -running study from Harvard Medical School found one clear truth: The #1 predictor of long-term health and happiness isn’t diet, exercise, money, it’s relationships. Sardinians are recognized as one of the places with unusually high numbers of people living to 100 as sited by the Blue Zones foundations. Their tricks: The eat together, walk together, work together and stay close to their