Have you ever wondered just how much your own frame of mind influences your physical health? Many of us can attest to having a friend that always stays positive and, sure enough, doesn’t seem to struggle with common colds and other ailments that slow us down. There is a growing body of research supporting the idea that a fascinating and complicated link exists between the mind and the body. In January of 2016 Terry Gross interviewed Jo Marchant on NPR’s Fresh Air to discuss