An Irregular Heartbeat May Be a Sign of Atrial Fibrillation: If A-fib goes untreated, it will weaken your heart; report symptoms such as a rapid or fluttering heartbeat to your doctor

Atrial fibrillation (A-fib), an abnormal heart rhythm, is estimated to affect as many as 6 million Americans, and there is evidence that it can be more dangerous for women than [...]