A pacemaker is a small device implanted under the skin that controls abnormal heart rhythms. It's commonly used in people with heart conditions where the heart beats too slowly or irregularly. In this ...

The human heart is a highly complex pump made of muscle, complete with its own electric power system, supplying the energy and oxygen it needs to function. The heart’s pumping action is regulated by ...

Discover expert AFib care at Baylor Scott & White The Heart Hospital – Plano, ranked among the best in the nation for cardiology and heart surgery.

Lakeway attorney David Wright, 72, had dizzy spells for years, but none of his doctors found the source. Last year, when he was jogging, he noticed his heart rate, which was usually in the 50s, went ...

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 like atrial ...