@instituteofhumananatomy: 🔥 Want to burn fat? There's only one energy system in your body that can actually do it. Your body has three energy systems for producing ATP — the energy currency of your cells — fueled primarily by carbohydrates and fats. But here's what most people don't know: only one of those three systems can burn fat. That's the aerobic energy system (also called oxidative phosphorylation). It requires oxygen, produces carbon dioxide as a byproduct (literally one of the main reasons you breathe), and is the only pathway capable of breaking down fatty acids for fuel. 🫁 No oxygen = no fat burning. It's that simple. This is the physiology behind why low-to-moderate intensity, sustained exercise is so effective for fat loss — and why breathless, all-out sprints aren't primarily burning fat in the moment. 🔬 Follow for more anatomical awesomeness! #tiktoklearningcampaign #anatomy #humananatomy #fatloss #fatburning #energysystems #aerobic #ATP #oxidativephosphorylation #exercisescience #physiology #anatomyandphysiology #fitness #sportsscience #metabolism #medschool #learnontiktok

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Tuesday 30 June 2026 15:00:00 GMT