The beep test, which aims to measure aerobic fitness, can evoke a sense of dread among amateur and elite athletes alike.

If you don't already know your blood type, you're going to want to find out so you can learn more about your risk for heart disease.

As the video zooms in on some of the most active and interesting currents around the globe, the NASA oceanographer Josh Willis details how this aquatic circulatory system affects human life, from ...

Too many people still miss heart trouble Is your heart healthy? In a 2015 study published in JAMA, eight out of 10 men and ...