Thanks for this link, !
Research shows women make good medicine
From the last paragraph:
The famed Nurses Health Study from Harvard Medical School found That the more friends women had, the less likely they were to develop physical impairments as they aged, and the more likely they were to be leading a joyful life. In fact, the results were so significant, the researchers concluded, that not having a close friend or confidante was as detrimental to your health as smoking or carrying extra weight!