You should seek emergency care if you have a consistent rapid heartbeat or if you also have dizziness, loss of consciousness, ...

The heart rate measures the number of times per minute that the heart contracts or beats. Most adults have a target resting heart rate of 60 to 100 beats per minute. A healthy heart supplies the body ...

Share on Pinterest Your heart rate can vary depending on the time of day or even the season. Getty Images Researchers found that daily resting heart rates differed between individuals by as much as 70 ...

An abnormal heart rhythm, or arrhythmia (also referred to as an irregular heartbeat), is a condition in which your heart beats too fast (at more than 100 beats per minute, or BPM), too slowly (at less ...

A good resting heart rate depends on your age, gender, level of physical fitness, and overall lifestyle. Here's what you need ...

The 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 ...

I receive a lot of emails from readers, which are wide-ranging in topic. Sometimes they're from readers who agree with me while others take issue with what I’ve written. Some ask provocative questions ...

Atrial fibrillation with rapid ventricular response is a fancy name for an irregular heartbeat. When your heart's electrical signals aren't working right, it can lead to a heartbeat that's too fast.