Inside every cell are tiny power plants called mitochondria. Their job is to take in oxygen and nutrients and turn them into energy—the fuel that keeps your body and brain alive and functioning. But here’s the problem: for many people, mitochondria aren’t working at 100%. When that happens, your body simply can’t make the energy it needs. The result? Fatigue, memory problems, liver dysfunction, even heart failure. At the root of almost every chronic illness lies poor mitochondrial function. At L