A recent study found people with coronary artery disease saw improved health outcomes after committing to the workout for 12 ...

Maintaining a stable heartbeat is critical for survival. Your heart must constantly adapt its output to meet changing demands for oxygen and nutrients. Traditionally, scientists have attributed ...

A blurry heart scan won’t tell you much. But a clear, high-quality image can show exactly how well a heart is working.

Because their heart functions more efficiently, athletes require fewer heart beats overall to circulate blood. Breakdowns in the sinoatrial and atrioventricular nodes can cause heart rate problems.

New research shows that the heart has a mini-brain -- its own nervous system that controls the heartbeat. A better understanding of this system, which is much more diverse and complex than ...

Researchers have examined the early stages of heart development, showing how complex meshes of muscle grow to form a complex 3D pump structure.

A heart PET scan is an imaging tool, offering information on blood flow and heart health. Learn more about how this scan helps with diagnosing heart conditions.

What the newer functions do is anticipate a patient's need for an even faster heart rate. So that if one is exercising generally with or without a pacemaker, there is a need for the heart rate to ...

Heart damage occurs when substances or medical conditions harm heart tissue. Signs of heart damage from drugs may include chest pain, irregular heartbeat, and cough.

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 ...