Let's get straight to the heart of the matter—the heart's job is to move blood. Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns ...

Affecting 1 in 500 people, hypertrophic cardiomyopathy is a condition in which the walls of the left ventricle, the heart's ...

People who regularly engage in significant amounts of exercise, as endurance athletes do, may develop enlarged hearts. While ...

You're using about the same amount of force your heart uses to pump blood out to the body. Even at rest, the muscles of the heart work hard—twice as hard as the leg muscles of a person sprinting.

Building muscle is different for everyone, but anyone can achieve it. The key is a consistent training routine, nutritious ...

Potassium is an important nutrient that supports heart function and fluid balance. A well-balanced potassium intake helps ...

The two were watching a group of jellyfish swim, and Parker says he immediately saw the resemblance between the muscular pump the jellyfish use to move and the muscles that work the heart.

Numerous motor and structural proteins compose a highly ordered structure known as the sarcomere, the basic unit of muscle contraction in heart and skeletal muscles. Sarcomeric myosin heavy chain ...

It's an ability and skill often taken for granted. It affects quality of life and has been linked to heart disease and stroke ...

Hidden fat in muscles - similar to beef marbling - leads to a higher risk of dying from heart attacks or heart failure regardless of body weight, according to a study. While ‘fatty marbling ...