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 your ...

Atrial fibrillation occurs and maintains itself in the context of a morphologically and functionally altered atrial substrate that can be induced by stressors such as underlying diseases (cardiac or ...

Atrial fibrillation (AF or afib) is a type of heart rhythm disorder, or arrhythmia. It causes your heart to beat irregularly and can significantly increase the heart rate, leading to your heart’s ...

When you put your hand on your chest, you might feel your heart's familiar lub-dub beat. If your heart races or the beats feel irregular and the feeling lasts for a few minutes, that’s a sign you ...

Drinking a cup of caffeinated coffee daily led to a significant drop in atrial fibrillation (AF) or flutter in patients with sustained AF compared with those who abstained from coffee and caffeine, ...