Muscle-on-chip systems are three-dimensional human muscle cell bundles cultured on collagen scaffolds. A Stanford University research team sent some of these systems to the International Space Station ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Both running and swimming are great forms of cardio, engaging your muscles, boosting heart health, ...

Loss of muscle mass is also a significant challenge for athletes, as many sports encourage them to keep body weight low while ...

Building muscle depends on several factors and isn't something that'll happen overnight after just one workout.

Cycling and running both improve fitness. Learn how they compare to decide which fits your goals and lifestyle best.

Dan Gordon does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Our early human ancestor was capable of running, if slowly, a new study finds. By Franz Lidz More than three million years after her death, the early human ancestor known as Lucy is still divulging ...

Boston marathoners can expect their bodies to take quite a beating. — -- The 35,000 runners who line up for today’s Boston Marathon can expect their bodies to take quite a beating from the ...