In atrial fibrillation, the heartbeat is very irregular and often fast. Doctors use medicines to control both the speed and ...

Your heart beats about 100,000 times a day. Sometimes it beats faster and sometimes more slowly, depending on what you're doing and whether, for instance, you're all worked up about something. So ...

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 ...

Many people find themselves lying in bed, suddenly aware of their heart beating faster than usual. When the room grows still, the pulse in your chest can feel louder, stronger and impossible to ignore ...

1. Stress and anxiety: Emotional stress and anxiety can trigger the release of adrenaline, which can lead to palpitations. 2. Caffeine and stimulants: Consumption of caffeine, nicotine, and certain ...

Sitting quietly at your desk, watching TV, or lying in bed at night, your heart should be taking it easy – beating steadily and calmly at somewhere between 60 and 80 beats per minute for most healthy ...

Sudden cardiac arrest may occur in various conditions when someone, while active (playing basketball or walking with friends) ...

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 ...

Pregnancy is often marked by unexpected changes in your body that can catch you off guard. You may expect some of these changes, but others can cause worry. Feeling your heart beat faster, even when ...