Why Walking More Won't Burn More Fat (The Energy Trap).

We’ve been told that 10,000 steps is the holy grail of human health. But what happens if you double it? In this video, we follow Dave the Stickman as we simulate what actually happens to your body, your joints, your hormones, and your metabolism when you walk 20,000 steps every day for 30 days straight. From the initial shockwave on your tendons and the surge of BDNF in your brain, to the hidden metabolic ceiling discovered by evolutionary anthropologist Dr. Herman Pontzer—here is the unvarnished science of human endurance. TIMESTAMPS: 0:00 - The 10,000 Step Myth 2:20 - The 20,000-Step Crucible (Days 1–20) 3:52 - Pontzer’s Law & The Metabolic Ceiling 5:05 - The 1965 Tokyo Secret (Manpo-kei) 5:42 - What Your Body Actually Needs #Walking #Fitness #Metabolism #Health #Animation #Explainer