Tag: Muscle metabolism

The human heart beats approximately 100,000 times per day, pumping blood throughout the body. This relentless action is the foundation of **what the heart does for the muscular system**, acting as the central engine for delivering the oxygen and nutrients muscles need to function, repair, and grow.

An adult human body typically has between 13% and 24% fat mass, but these cells are far less active than muscle tissue, which burns calories at a much higher rate. Understanding this fundamental difference is key to answering the question: Does fat or muscle metabolize faster?