About Mark Sisson: Mark Sisson was one of the world's leading authorities on the evolution of the health and fitness-based principle. He has pioneered the main reception for grassroots movement fans want to reconnect in a more simple, it makes more sense to life. From the simple – and controversial – campaign, in 2006, today his blog MarksDailyApple.com is one of the world's top-3 ranking natural health website, with over 800,000 unique visitors per month.
Mark, 58, is a former marathon runner 2: 6 and the fourth place finisher in the Hawaii Ironman Triathlon World Championship. In addition to blogging on a daily basis, Mark held seminars across North America and hosts an annual 3-day Primal retreat in California. He lives with his wife, Carrie, and children, Devyn and Kyle in Malibu, California.