John is the author of The PaleoManifesto and co-author of SpartanFit! with Joe De Sena, founder of Spartan Race (July 2016). He has been featured in the New York Times and The New Yorker, interviewed on The Colbert Report and NPR Morning Edition, and has been rated one of The 100 Most Influential People in Health & Fitness. John is also the founder of Wild Ventures (wildventures.vc), an angel syndicate specializing in consumer health products & technology. He advises Thrive Market, Exo, AOBiome, Greatist, Brilliant Bicycles, Hu Kitchen, and Power Supply. John studied evolutionary psychology at Harvard under Steven Pinker before moving to New York City and becoming a “professional caveman”: mimicking a hunter-gatherer diet, running barefoot through Central Park, experimenting with intermittent fasting, and doing polar bear swims in the Atlantic.