A speaker (head of psychiatry at Stanford) gave a lecture on the mind-body connection of the relationship between stress and disease.  He 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.  

Women connect with each other differently and provide support systems that help each other to deal with stress and difficult life experiences. Physically this quality "girlfriend time" helps us to create more seratonin--a neurotransmitter that helps combat depression and can create a general feeling of well being. Women share feelings whereas men often form relationships around activities. They rarely sit down with a buddy and talk about how they feel about certain things or how their personal lives are going. Jobs? Yes. Sports? Yes. Cars? Yes. Fishing, hunting, golf? Yes. But their feelings?--rarely. Women do it all of the time. We share from our souls with our sisters, and evidently that is very good for our health. He said that spending time with a friend is just as important to our general health as jogging or working out at a gym.  

There's a tendency to think that when we are "exercising" we are doing something good for our bodies, but when we are hanging out with friends, we are wasting our time and should be more productively engaged--not true. In fact, he said that failure to create and maintain quality personal relationships with other humans is as dangerous to our physical health as smoking! So every time you hang out to shmooze with a gal pal, just pat yourself on the back and congratulate yourself for doing something good for your health! And when you combine exercise with that girl time, you received double the benefit!! We are indeed very very lucky.