Mark Sisson is a health and fitness expert, entrepreneur, author and the founding father of the ancestral health movement. He’s a former world-class endurance athlete with a 2 hour 18 minute marathon and a fourth-place finish in the Hawaii Ironman World Triathlon Championships. Mark's blog, MarksDailyApple.com and Primal Blueprint lifestyle program have paved the way for primal enthusiasts to break free from conventional wisdom's diet and exercise principles. His latest book is Two Meals a Day: The Simple, Sustainable Strategy to Lose Fat, Reverse Aging, and Break Free from Diet Frustration. Subscribe to The Jesse Chappus Show on YouTube: / @jessechappus (And be sure to hit the 🔔 to get notified when new videos are released!) In this episode, we discuss: 00:00:00 - Intro 00:00:19 - The two meals a day concept 00:04:30 - Start by eliminating the big 3: sugar, processed grains & industrial seed oils 00:08:07 - How to become metabolically flexible 00:10:55 - Compressing your eating window triggers autophagy 00:13:40 - The cutting out the carbs strategy 00:17:15 - What’s the least amount of food I can eat? 00:22:33 - Carb dependent vs. fat adapted 00:25:57 - The concept of keto without building metabolic flexibility 00:29:15 - Focus on measuring how you feel 00:31:32 - Mark’s lifestyle transition after moving from Malibu to Miami 00:33:29 - Walking is an underestimated form of movement 00:35:19 - Treating piriformis syndrome 00:39:47 - Why Mark is a fan of the barefoot movement 00:45:38 - The running world is embracing minimalist shoes 00:47:12 - Becoming a grandfather 00:48:38 - Mark’s morning routine 00:53:22 - The benefits of fire & ice training 00:59:26 - How to activate brown fat 01:02:37 - Mark’s entire career as an endurance athlete was about managing discomfort 01:05:51 - Perseverance is one of your greatest assets in business 01:08:01 - Mark hitting his entrepreneurial home run at age 65 01:10:04 - You can only compare yourself to yourself 01:12:07 - Achieve your fitness goals by changing your diet 01:14:50 - The growth of Primal Kitchen 01:19:51 - Coffee helps you burn fat 01:22:51 - Metabolic flexibility includes mental flexibility Show notes: https://jessechappus.com/416 Listen & subscribe to The Jesse Chappus Show ✩ Apple Podcasts: https://podcasts.apple.com/podcast/id... ✩ Spotify: https://open.spotify.com/show/5A1vpgP... Connect with The Jesse Chappus Show ✩ Website: https://jessechappus.com ✩ Instagram: / jessechappusshow #marksisson #jessechappus #fasting About the Podcast Jesse Chappus has in-depth conversations with health and wellness leaders from around the world. Topics include lifestyle, nutrition, fitness, self-help, sleep, meditation, spirituality and so much more. Tune in weekly to take your health to the next level! Disclaimer The opinions expressed in this video are those of the guest and are presented for informational purposes only. This content is not medical advice. Please consult your healthcare provider regarding any health-related decisions.