For decades, doctors have observed that women generally have faster heartbeats than men, while men are more likely to develop irregular rhythms like atrial fibrillation (AFib). A new study from The ...

A new study shows that the sinoatrial node (SAN) -- a small but powerful structure in the human heart that serves as its natural pacemaker and initiates every normal heartbeat -- runs on different ...

COLUMBUS, Ohio – For decades, doctors and researchers have puzzled over a basic heart rhythm mystery: Why do women tend to have faster heartbeats while men are more likely to develop irregular rhythms ...