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

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 ...

Chest pain or palpitations can signal hidden heart trouble. Know when an ECG test is needed, what results show, and when to seek urgent care.

It's a common yet uncomfortable sensation when the heart beats rapidly for a second or two and then becomes normal. Whether it occurs when one is resting, after going up the stairs, or even while ...

Heart palpitations are a common but usually harmless symptom. However, persistent heart palpitations or other severe symptoms, such as chest pain, shortness of breath, or fainting, require prompt ...

Atrial fibrillation (AFib) is a heart condition characterized by an irregular and often rapid heartbeat. However, some individuals may experience a standard heart rate without medication, depending on ...

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 ...