You know the feeling. When you first see your crush and your head starts spinning, your palms get sweaty, and your heart begins beating a mile a minute. Is this love? Or is it … an arrhythmia? The ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Celine Dion sings that "my heart will go on," but how many times does it actually beat in a day or even a lifetime? When you purchase through links on our site, we may earn an affiliate commission.

The human heart, a fist-sized muscle, tirelessly beats billions of times throughout life, powering every cell by delivering oxygen and removing waste. Its rate varies significantly from birth to old ...

First-degree ventricular (heart) block affects the electrical signal that makes the heart beat. It causes a delay in a portion of the heart beat and may lead to a slow heart beat. Healthcare ...

A lab in Vienna has used stem cells to create thousands of tiny heart-like structures. Each miniature heart, dubbed a “cardioid,” is the size of a sesame-seed and has a hollow chamber that beats.

The rhythmic expansion and contraction of Antarctic sea ice is like a heartbeat. But lately, there’s been a skip in the beat. During each of the last two summers, the ice around Antarctica has ...

For the first time, surgeons have successfully performed a remarkable new heart transplant in which the donor organ never skips a beat in the process, reducing the damage that can occur during such a ...

For most teenagers, just surviving puberty and keeping up with studies, after-school activities and a social life is enough of a challenge. Audrey Koch, 14, has much bigger concerns. She’s had more ...