"A lot of women will say that their friendships are the most important relationships of their lives," says Suzanne Braun Levine. From her days in the offices of Ms. magazine to her monthly dinners with her "Post-Fifty Posse," Levine has both personally experienced and objectively studied the psychological, spiritual, and physical benefits of female friendships. Here, Levine talks about the importance of a core group of girlfriends and how the opportunity to have deep, stress-reducing laughter in their company can be all it takes to make everything else seem okay.