So dog may be man's best friend, but three women are here to talk about the power-- and pratfalls-- of two-legged friendship. This month, this show, we are talking about friendships-- whether they are friendflings or bone-deep lifelong relationships, friends have a tremendous role in our lives. People talk about how their friends feel like family. And they’re not far off.

A 2014 study shows that, genetically speaking, friends have more in common than strangers do. Here to discuss the science and art of friendship are best friends Ellen Goodman and Patricia O’Brien, co-authors of “I Know Just What You Mean: The Power of Friendship in Women's Lives, and author Jan Yager, who has been studying friendship for thirty years, and who has written three books discussing best friends, friendships, and friend breakups.