Sure, you know how to steal hearts, win hearts, and break hearts. But how much do you really know about your heart and how it works? Read on to your heart's content! Put your hand on your heart.

The heart is so powerful, it only takes about a minute for the blood to be pumped out, travel all the way around the body and come back again. The heart is a muscle that pumps blood around the body.

The heart gives the blood a second push. This time, it's sent all around the body to the various organs and tissues. The blood travels back to the heart and it all begins again.