We have 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 summarised in two best-sellers, Bruce Lipton’s The Biology of Belief and Dawson Church’s The Genie in Your Genes . In this book Dawson Church presents, in simple, non-scientific language, the latest research on how your mental state affects these genes. He shows how belief, intention, forgiveness, meditation, altruism, optimism, and other attributes of happiness can exercise a powerful effect on our stress genes. These genes are involved with ageing and immunity and by changing our emotional state to a happier one, we turn on the genes that promote better health and longevity. He shows that the effects of these emotional practices can add many healthy years to our lives.