The arm extends from the shoulder to the wrist, including the upper arm and forearm. Different muscles may work together in intricate ways to help the arm, wrists, fingers, and hands function. Knowing ...

What Is the Psoas Muscle? The psoas (pronounced so-ezz) muscles are two large muscles in your lower back. You have one on either side of your spine. They're the main muscular connection between your ...

Neck muscles have an essential role in supporting and stabilizing your neck. More than 20 muscles are working to keep your head supported and moving. Your neck muscles have a range of responsibilities ...

The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a University of Michigan study. Nearly all animals use muscle to move, and it's been known for a long ...

Learn how mapping gene-control switches in an ancient sea anemone reveals how identical DNA can produce many different cell ...

A mutation in the gene that causes fibrodysplasia ossificans progressiva (FOP) doesn't just cause extra bone growth but is tied to a problem in generating new muscle tissue after injury, according to ...

Still dealing with a tight hip or weak glute—despite all the foam rolling, stretching, and strengthening? Or, maybe you’ve had an injury that keeps flaring up, even though you thought it was finally ...

Study uncovers a polyphenol's mechanism in enhancing mitochondrial calcium uptake and muscle bioenergetics during aging. Study: Mitochondrial calcium uptake declines during aging and is directly ...