DAN BUETTNER is the founder of Blue Zones, an organization that helps Americans live longer, healthier lives. His groundbreaking work on longevity led to his 2005 National Geographic cover story "Secrets of Living Longer" and a second, "The Search for Happiness," in 2017. Buettner has authored seven national bestsellers including: The Blue Zones Kitchen, The Blue Zones, Thrive, The Blue Zones Challenge, The Blue Zones of Happiness, and The Blue Zones Solution. He is a National Geographic Explorer.