Join Kris in this wonderfully rich interview with Oprah's happiness guru, Harvard Researcher and Positive Psychology expert and Teacher, Shawn Achor. In this episode, Kris and Shawn talk about all of the research that points to how practicing happiness by choice leads to a happy life.  Shawn says "We are no longer subject to our genes prediction our level of optimism or happiness."  We can practice gratitude at any age and become more optimistic.