The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Below, you’ll discover all kinds of fascinating trivia including which country has more pyramids than any other place in the ...

There are many muscles in the body that people desire to exercise so they can look and feel their best. However, one of the most important muscles may be overlooked in terms of healthy living plans.

Originally appeared on the NOVA Web site Cut to the Heart. 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 ...