In a new research report, a team of scientists led by Johns Hopkins Medicine say people with severe obesity and a common type ...

When heart muscle gets damaged, the result is often permanent. Unlike other muscles in the body, the heart has long been believed to lack the ability to heal itself. But recent research suggests that ...

When heart muscle cells are deprived of blood and oxygen, they can start to die, damaging the heart. Historically, scientists believed that heart muscle cells, called cardiomyocytes, could not ...

Study shows greater muscle area in men leads increased risk of heart disease; it's different for muscle density. Body composition -- often expressed as the amount of fat in relation to muscle -- is ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...