With each heartbeat, blood courses through your body. Some traverse arteries from the lungs back to the heart, and some navigate through capillaries in the thinnest layers of your eyelid, almost ...

Your heartbeat can provide valuable clues to help you stay well. Here’s what top cardiologists want you to know about it.

The blood flows around the body in blood vessels (tubes) called arteries, veins and capillaries. This is the circulatory system. The heart pumps the blood through the circulatory system. Arteries ...