The heart is a complex organ that pumps blood throughout the body. It sits in the chest, slightly left of center, behind the breastbone, and between the lungs. A heart that is not healthy does not ...

What Is a Heart Attack? A heart attack happens when something blocks the blood flow to your heart so it can’t get the oxygen it needs. It’s a medical emergency. Call 911 right away at the first sign ...

Understanding your heart rate variability (HRV) can help you make better workout choices, and understand when it's time to recover. Generally speaking, your resting heart rate will become lower as ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It has four chambers, blood vessels and it beats — sort of. In a first, scientists have 3D ...

Under the watchful eyes of scientists, stem cells in lab dishes assembled themselves into tiny heart "organoids," roughly the size of sesame seeds, and began "beating" like real miniature hearts.

The American Heart Association report runs contrary to recent studies — and the group’s own guidelines — that found any ...

Primary heart tumors are abnormal growths in your heart. They’re very rare. According to the European Society of Cardiology (ESC), they’re found in less than 1 out of every 2000 autopsies. Primary ...

Here's a handy glossary of heart emoji meanings for every communication style, according to an actual emoji expert With an endless array of emojis at our fingertips—and new ones constantly popping ...

This morning Matt Boch, the creative director for Fantasia Games, uncovered of possibly terrifying reality for iOS emoji addicts; you may accidentally be sending your friends an emoji of a hairy heart ...