Atrial fibrillation, or AFib, is a condition in which the heart beats quickly and irregularly. According to the Centers for Disease Control and Prevention, AFib is the most common heart rhythm ...

Atrial fibrillation, also called AF or AFib, is a quivery, fluttery heartbeat. You might also hear the doctor call it arrhythmia. It means your heart’s normal rhythm is out of whack. Because ...

September is National Atrial Fibrillation Awareness Month. But what is atrial fibrillation and how do you fix it? A normal heart rhythm should beat like a steady drum. Atrial fibrillation is like ...

A previous photo with this article showed an electrocardiogram of normal sinus rhythm, not atrial fibrillation. This version has been corrected. When considering problems with the heart ...

Seeing a loved one pass out with their eyes rolled back is a terrifying thing to experience. That minute or two you live ...

The veteran defensive lineman said his heart went into atrial fibrillation or "Afib," and needed to be shocked back into rhythm on Thursday. Afib stands for atrial fibrillation, which is a type ...