Nearly 14 million Americans live with arrhythmias. Learn to identify the warning signs of these common heart rhythm disorders ...

A new Ohio State University study reveals that men and women have different genes driving heart rhythm. This may explain why ...

A landmark study from Hiroshima University is shedding new light on a question that has long intrigued doctors and ...

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 ...

For decades, doctors and researchers have puzzled over a basic heart rhythm mystery: Why do women tend to have faster ...