Ben Greenfield: Power of Silence, Sight & Sound Effects on Physiology | Ep. 217

Ben Greenfield is a biohacker, human body and brain performance coach, ex-bodybuilder, Ironman triathlete, professional Spartan athlete, anti-aging consultant, speaker and author of the New York Times Bestseller “Beyond Training: Mastering Endurance, Health and Life” (www.BeyondTrainingBook.com). Ben is a Spartan SGX certified coach, was voted as NSCA’s Personal Trainer of the year in 2008, and was named by Greatest as one of the top 100 Most Influential People In Health And Fitness in 2013 and 2014. Ben's articles, podcast and videos reach over a million unique views each month.