Dan Buettner is an internationally recognised researcher, explorer, and author. He founded Blue ZonesTM, a project of Quest Network, Inc., to research and publicize the world's best practices in health, longevity, and happiness. As a pioneer in exploration and education, he has traveled the world to answer some of science's biggest questions. Buettner's National Geographic cover story on Blue Zones was one of the top-selling covers in the magazine's history.