The heart functions as a muscle which needs continuous movement for proper operation, according to Dr. London. The heart ...

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 ...

New research from Karolinska Institutet and Columbia University shows that the heart has a mini-brain - its own nervous system that controls the heartbeat. A better understanding of this system, which ...

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 ...

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

A new lab-grown material has revealed that some of the effects of aging in the heart may be slowed and even reversed. The discovery could open the door to therapies that rejuvenate the heart by ...

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

On World Heart Day 2025, learn how chest pain is evaluated to detect heart attacks. Our expert explains the accuracy and ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...

Undergoing surgery to correct a cardiac problem may cause a temporary decline in kidney function or worsen an existing kidney issue. Dialysis and kidney transplant are the primary treatment options.