As our hearts beat, a small portion of the oxygen they process gets pushed through the coronary arteries, small tubes that supply O2 directly to the heart muscle itself. It’s a brilliant perpetual motion machine, like a battery that powers its own charger. But as we age, plaque builds up inside the coronary artery, making it harder and harder for enough blood to squeeze through. This leads to heart attacks and is caused by cheeseburgers.
