Re: The Heart never stops beating.
The heart has electrical nodes in it that keep it beating. Isn't it an amazing organ. The heart gets tired when it needs to push blood through narrow blood vessels that have plaque build-up in them, thats why you want to keep your cholesterol in a safe range, monitor your blood pressure, watch your weight and exercise. Anything that constricts your blood vessels such as smoking and too much caffiene is also bad. Some cardiac problems can also be heridatary.