The vagus nerve not only divides and branches out (its name derives from the Latin word for “wandering”), but it also connects to and interacts with other nerves in the body.

This article was originally posted Dec. 8, 2014. It has been updated. There are many things in medicine that are merely a matter of preference or style. How to check a patient’s pulse is not one ...

Facial nerve paralysis describes weakness in the muscles on one or both sides of your face that causes an inability to smile, blink, or control other facial movements. It happens when the facial nerve ...

Peripheral artery disease (PAD) is a condition in which one or more of the arteries supplying blood to the body, flowing away from the heart, become blocked or partially blocked. This often reduces ...

Coronary artery disease, CAD, is a condition where the arteries that supply blood to the heart muscle become clogged and narrow, making it difficult for blood and oxygen to reach the muscles of ...