Today's episode is a wonderful conversation between Chalene Johnson and Mark Sisson, author of The Primal Blueprint. A former marathon runner and Ironman triathlete, Mark has maintained an incredible level of fitness into his 60's through smart exercise and smart eating. Mark and Chalene talk about ways to stay active (hint: do things you enjoy) and how to approach your diet. Seriously, this is an episode that has something for everyone.  Learn more about your ad choices. Visit megaphone.fm/adchoices