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?

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! Put your hand on your heart.

Did you know broken heart syndrome is real? Super stressful events, like a death or a divorce, can trigger chest pain. Spooky but true. If doctors removed your ticker, it would keep beating for a ...

An curved arrow pointing right. Your heart beats 100,000 times today and does some amazing things. Take a moment to learn some other amazing facts about this vital organ. Produced by Kevin Reilly ...

Heart disease remains the leading cause of death in the country, yet many of us don’t truly know how healthy our hearts are. It’s a condition often dismissed by young people, with some blaming ...

Atherosclerosis, the hardening of arteries from plaque buildup, can begin as early as adolescence, significantly increasing heart disease risks later in life ...

It remained relatively close to the ground and browsed low-lying vegetation. Thescelosaurus has been at the heart of a prehistoric controversy because some have suggested the animal represents an ...