A rider on a group trail. Use it or lose it. What does that mean? Muscles adapt for the function they are used for. If you don’t need the power of muscles for function, our bodies shift the energy to ...

A small molecule inside your body quietly fuels life every day. It helps your cells turn fat into energy, keeping your heart beating and your muscles moving. Now, scientists have found a way to watch ...

Engineers have long tried to build artificial muscles that work like the ones in the human body—strong, flexible, fast, and ...

Eating too much ultraprocessed food could take a toll on muscle health, according to new research published Tuesday in the ...