Is obesity a willpower problem? Short answer: no, and the evidence isn't close. This playlist is Barbell Medicine's full case, with Dr. Jordan Feigenbaum and Dr. Austin Baraki, on what actually sets body weight and why "just eat less and move more" keeps failing. Obesity roughly tripled in about 50 years while human genes stayed the same, so the driver was something else: the environment those genes live in, and the appetite and metabolism your body defends. Across the full episode and the segments below, we walk the adoption and twin studies behind heritability, the defended-range model of weight regulation, the food environment that does most of the eating for you, the long history of treating body weight as a moral failing, and where GLP-1 medications actually fit. In this playlist: Is Obesity a Willpower Problem? (full episode) What Actually Determines Your Weight? Genetics, the Set Point Myth, and the Defended Range Why Your Body Fights Weight Loss: Appetite, Metabolism, and The Biggest Loser The Food Environment Is Doing the Eating for You Are GLP-1s Cheating? What the Drugs Actually Do Calories in vs. Calories Out Evidence-based, anti-shame, and practical about what to change first. If you've spent years losing and regaining the same weight and blaming yourself for it, start here. Work with us and go deeper: Coaching and templates: www.barbellmedicine.com Plus podcast subscription: www.barbellmedicine.com/shop/subscriptions/plus-po… Barbell Medicine Premium: www.barbellmedicine.com/shop/subscriptions/barbell… Signal (book pre-order): www.barbellmedicine.com/shop/learning/signal/