Heart disorders can show up in many ways, but one of the most common is an irregular heart rhythm known as atrial fibrillation, or AFib. In this condition, the heart beats fast and inconsistently, ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." Feeling a sudden fluttering in your chest can be understandably scary, especially if you’ve never dealt ...

Atrial fibrillation, also known as AFib, is an irregular heartbeat, or arrhythmia that happens when the upper chambers of the heart (the atria) are out of sync with the lower chambers and beating ...

AFib can affect more than your heartbeat. Banner Health explains how it may raise stroke risk, cause fatigue or shortness of breath and when to get care.

For the 10.5 million Americans living with atrial fibrillation, a large study published today in the Journal of the American Heart Association delivers one of the clearest population-level verdicts ...