Ever wonder why you feel drained—physically or mentally? It all comes down to metabolism. Your body runs on ATP, the energy currency that fuels everything from your muscles to your brain. When you’re exhausted, it’s often because your mitochondria aren’t producing enough ATP to keep up with demand.

In this video, Dr. Barry Sears explains:

✅ Why your muscles get tired and how metabolism plays a role

✅ Why mental fatigue happens and the brain’s massive energy demands

✅ How to optimize your metabolism to turn calories into energy—not excess body fat

If you want to fight exhaustion and feel more energized throughout the day, it’s all about making your metabolism work more efficiently. Watch now to learn how!