We've joked about having the right genes for happiness, but it turns out that we might have just that. New evidence from the emerging science of epigenetics shows that there is a complex interplay between some of our key regulatory genes, and our emotional state. The practical applications of epigenetics were summarized in two bestsellers, Bruce Lipton's The Biology of Belief and Dawson Church's The Genie in Your Genes. In this new book, Dawson Church...