A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

Here are the early warning signs of an irregular heartbeat, including fast, slow, or skipped beats, and when it may signal a ...

Middle-aged folks who don't exercise are putting themselves at risk of life-threatening complex heartbeat irregularities, a new study says. Adults 40 to 65 with low fitness levels had a 52% increased ...

While your heart rate rises during activity, regular exercise strengthens the muscle, making it more efficient at rest and ...

A resting heart rate between 60 and 100 beats per minute (bpm) is considered normal for most people, according to the American Heart Association (AHA). If your resting heart rate is over 100 bpm, you ...

Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...

Forget the myth that exercise uses up your heartbeats. New Australian research shows fitter people use far fewer total heartbeats per day - potentially adding years to their lives. Athletes had an ...