My heart was beating really fast, but I don’t have symptoms now. Should I see a doctor? If you’ve asked yourself this question, then you’ve probably noticed your heart skipping a beat, fluttering, or ...

like when your heart skips a beat. “It’s not that caffeine is causing it to skip, [caffeine] is just making it more obvious, more prevalent, and making it show up and cause symptoms,” says ...

You know the feeling. When you first see your crush and your head starts spinning, your palms get sweaty, and your heart ...

Damaged hearts could be mended using small "patches" of heart muscle grown in the lab, say scientists writing in Nature. The ...