| Dr. McDougall talks with Dan Buettner about his new book The Blue Zones Challenge and how to make lasting changes to improve health. Only 20% of longevity is gene-related, the remainder is determined by other factors such as what we eat and how we care for our bodies. The Blue Zones Challenge shows people how to set up their kitchen, home, workplace and social life in a way that makes the healthy choice the easy choice. | 