You have 20 muscles in your forearm, the part of your arm between your elbow and your hand. They help you move your arms, hands, and fingers and perform many of the tasks of daily life. You can strain ...

WASHINGTON — Hospitals in about a dozen states are testing whether some simple steps, such as arm-strengthening exercises, could reduce the risk of one of breast cancer's troubling legacies — the ...

Curls are the classic gym bro exercise, and a bicep flex is the most iconic way to, literally, flex on someone. But does it matter what type of curls you do? And are there non-curl ways to get some ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.