Just 10 weeks of exercise reshaped the nerves controlling rats' hearts, researchers found.

Ever noticed your pulse seems to quicken during an upbeat song, or settle down during something slow and calm? It's not just in your head. Music doesn't just affect mood, it measurably influences ...

People exposed to more light at night showed differences in the structure and function of their hearts in a large ...

Your morning toast might be secretly undermining your heart health. That sandwich at lunch? It could be contributing to inflammation that affects your entire cardiovascular system. The pasta dinner ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...