In this issue of Nature Metabolism, Wu et al. reveal that cytosolic NADPH, a pentose phosphate pathway metabolite, drives a physiological cardiac hypertrophic response that is protective against heart ...

Endurance athletes were 58% more likely to experience a serious abnormal heart rhythm than people who strength trained or were sedentary. Strength training, on the other hand, wasn't linked to a ...

Myocardial fibrosis—scarred heart muscle—was linked with increased risk of irregular heart rhythms among male endurance athletes, according to a new study published in the Circulation: Cardiovascular ...

A meta-analysis found subtle heart muscle dysfunction in people with HIV despite normal ejection fraction, highlighting the ...

Adult heart muscle has long been treated as tissue with very little capacity to replace cells lost during a heart attack. A new observation in living human samples complicates that picture: heart ...

Transferring mitochondria from a patient's healthy skeletal muscle to damaged, ischemic heart tissue has been shown to restore heart muscle, increase energy production, and improve ventricular ...

High blood pressure forces the heart to work harder to pump blood. Over time, this extra strain can thicken the heart muscle ...

A Barcelona case series and systematic review of 103 patients map the clinical features, treatment patterns, and high ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Pulled Muscle or Heart Attack? How to Tell the Difference in Chest Pain Chest pain can be disconcerting, but it's important to ...

When you read about people dying of “natural causes,” it usually means that they died of heart failure because they spent too much time lying in bed. When you become inactive, you lose your skeletal ...