Your Metabolism, Explained: How to Boost Your Body's Fat-Burning System and Lose Weight
There’s a microscopic chemistry lab in each of your cells, working around the clock to turn your food into fuel. Here’s how this process affects your energy, weight, and even mood — plus tips on how to make your metabolism as speedy and efficient as possible.
Think of it as the engine within your cells that keeps you going. A car runs on gas; you run on calories, which are units of energy. Most of these calories are burned through your body simply doing its job existing: fueling your cells and keeping your heart pumping, your blood circulating, your lungs breathing, your digestive system working and your brain neurons ring (in fact, your brain alone needs about 420 calories a day