Ben Greenfield: how to master endurance, health and life

Ben is an ex-bodybuilder, Ironman triathlete, Spartan racer, coach, speaker and Author of the New York Times Best-seller Beyond Training: Mastering Endurance, Health and Life. In 2008, he was voted as NSCA’s Personal Trainer of the year, and in 2013 was named by Greatist as one of the Top 100 Most Influential People In Health And Fitness.