Mark Sisson shares what he does for exercise and movement to stay lean and fit as a 70 year old. This is a followup to Mark's "What I Eat in a Day" video. Mark Sisson is the founder of Primal Kitchen and uses a cross training approach across a week to stay fit and healthy well into his 60's and beyond. Get 20% off all Primal Kitchen products with code "HELLO20" - https://bit.ly/3a0adYm Shop Paleo Dressings, Sauces and More at: https://www.primalkitchen.com