Biofeedback is a mind-body technique that helps older adults monitor and control key body functions, including heart rate, breathing, and muscle tension. By using sensors and real-time feedback, ...

Frequent exercise doesn't just strengthen the heart – it also changes the nerves that control it, according to new research ...

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

A Kentucky researcher has solved a mystery of how the heart functions that has been unanswered for six decades. In a collaboration with the University of Massachusetts, a team used samples of donated ...

Study reveals digoxin improves heart pump function and helps ease heart failure and atrial fibrillation symptoms.

In TODAY.com's Expert Tip of the Day, a cardiologist explains how to slow down a racing heart in times of stress.

Dr. Myerburg answers the question: 'How Do Pacemakers Know To Pace Faster?' — -- Question: How do pacemakers know when I need a faster heart rate, for example when I am exercising or anxious?