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 ...

A marathon pushes the human body close to its limits. Legs tire, lungs burn and the heart works hard for hours on end. For ...

New research suggests that regular aerobic exercise doesn’t just benefit the heart muscle, but subtly rewires the nerves that control how the heart works. Regular physical activity does more than ...

In a decades-long effort, researchers have discovered how to tweak the molecular pathways that turn heart muscle motors up or ...

Some heart failure patients with artificial hearts have been able to regenerate heart muscle, potentially paving the way for future heart failure treatment options, according to a study published Nov.

For years, people taking one of the world’s most common heart drugs have described the same nagging side effect: sore, aching ...

Popular weight loss drugs like Ozempic and Wegovy are showing incredible short-term benefits – from boosted metabolic health to pain relief to addiction and cognitive health. These are really ...

Scientists have uncovered new evidence showing how type 2 diabetes directly reshapes the human heart, altering both its energy production and physical structure.

Cancer patients often lose excessive amounts of weight. This affects up to 80% of patients and is mainly due to a decrease in ...

Myocarditis has become a flashpoint in debates about COVID vaccines; however, new research suggests this rare heart ...

Stanford scientists have uncovered how mRNA COVID-19 vaccines can very rarely trigger heart inflammation in young men — and ...