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

Have you ever experienced a sudden increase in heart rate while sitting, lying in bed or even during a calm moment at work? The feeling can be unsettling as it often comes without warning or a clear ...

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 ...

Up to 2 million people in the U.S. experience rapid-fire heartbeats from time to time, and many end up in the hospital for treatment. But an investigational nasal spray may help folks with paroxysmal ...

Matthew Brigson regularly gets his heart pumping with martial arts training, but when his heart began racing last August it was cause for concern. Police officer Brigson, a training coordinator at ...

Cognitive decline, mental health and heart disease are all shaped by the deep links between heart and brain – with major ...