Mark Sisson is the bestselling author of The Primal Blueprint and one of the leading voices of the burgeoning Evolutionary Health Movement. His blog, MarksDailyApple.com, has paved the way for Primal enthusiasts to challenge conventional wisdom's diet and exercise principles and take personal responsibility for their health and well-being. With over 2 million unique monthly visitors, the blog is one of the top-ranked health resource websites on the Internet.