Atrial fibrillation (Afib) is a type of cardiac arrhythmia, or abnormal heart rhythm, that is very common — and more prevalent than previously thought. A large study published in October 2024 in a ...

Atrial fibrillation (AFib) affects an estimated three million to six million Americans—and a 2020 Journal of the American Medical Association (JAMA) study suggested the rate of AFib incidence is ...

If you have a racing or irregular heartbeat, also known as an arrhythmia, one likely suspect is atrial fibrillation (AFib). “Of all the possible heart rhythm disorders, atrial fibrillation is by far ...