T he 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 ...

Do you know much your heart weighs? How often your heart beats? Read on to learn little-known – but truly amazing – facts about the human heart.

Curious about the human heart and its function? The heartbeat of a baby begins around 4 weeks after conception. Read on to find more interesting facts about this important organ of the body.

ORLANDO, Fla. — February is American Heart Month. Advocates want to raise awareness about heart health and what you can do to keep your ticker ticking. 1. The human heart is about the size of ...

Despite the human heart being most often associated with love, the heart is primarily a muscle that works 24/7 to keep you alive. And, these fascinating facts about the human heart, even if you're ...

Amazing Heart Facts 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 to your heart's content!

The circulatory system includes the heart, blood vessels and blood, and is vital for fighting diseases and maintaining homeostasis (proper temperature and pH balance). The system's main function ...