MADRID — Impaired circadian heart rate (HR) fluctuations are linked to increased cardiovascular and all-cause mortality in patients with long-standing diabetes.

Sign up for CNN’s Fitness, But Better newsletter series. Our seven-part guide will help you ease into a healthy routine, backed by experts. You may be able to lower ...

Scar tissue in the heart was associated with abnormal heart rhythms among healthy, long-time male endurance athletes age 50 or older, potentially increasing their risk of sudden cardiac death, ...

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 ...

Some babies are born with abnormalities involving the structure of the heart, known as congenital heart disease (CHD). While many studies have shown that more babies with congenital heart disease are ...

A brisk walking pace, and the amount of time spent at this speed, may lower the risk of heart rhythm abnormalities, such as atrial fibrillation, tachycardia (rapid heartbeat), and bradycardia (very ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study links a brisk walking pace with lower risk for abnormal heart rhythms among older adults. - FG Trade/E+/Getty ...