Atrial fibrillation (also called AFib or AF) is a quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-related issues. Beat Your A-Fib: The Essential Guide to Finding Your Cure: Written in everyday language for patients with Atrial Fibrillation Conquer Your A-Fib: How To Beat Atrial Fibrillation 36 Ways [More]