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 ...

When it comes to heart health, many conditions are tricky to diagnose because their symptoms can be similar to others, and atrial fibrillation (AFib) is no exception. That’s a problem, since untreated ...

You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously ...

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

It's a common yet uncomfortable sensation when the heart beats rapidly for a second or two and then becomes normal. Whether ...

Most of us have had that unsettling sensation when our heart seems to flutter or "skip" a beat — but when heart palpitations start happening more frequently, you may wonder if it’s something to get ...

Tachycardia is the medical term for a heart rate over 100 beats per minute (BPM). It can be a sign of emotional distress or anxiety, anemia (low levels of iron in the blood), infections, dehydration, ...

Q: What is the difference between atrial fibrillation and supraventricular tachycardia? A: While both conditions are rapid, abnormal heart rhythms that originate in the upper part of the heart, they ...

Share on Pinterest Researchers say a nasal spray could become a new treatment for rapid heartbeats. ProfessionalStudioImages/Getty Images About 1 in 300 people in the United States have a racing ...

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 ...

DEAR DR. ROACH: How serious are palpitations? I’m a diabetic woman, age 77. I get these sensations various times throughout the day. Will I have a heart attack or stroke? -- B.G. ANSWER: Palpitations ...

The risk of developing an irregular heartbeat increases after menopause. New research finds that stress and insomnia may play a role. Having an irregular heartbeat raises the risk of developing a slew ...