In an evening class at Stanford, the last lecture was on the mind-body connection – the relationship between stress and disease. The speaker (head of psychiatry at Stanford) said, among other things, that one of the best things that a man could do for his health is to be married to a woman, whereas for a woman, one of the best things she could do for her health was to nurture her relationships with her girlfriends. At first everyone laughed, but he was serious.