Loss of muscle mass, also called muscle wasting or atrophy, can happen gradually as part of getting older or more suddenly due to underlying medical conditions. Other factors can contribute, like ...

Distal spinal muscular atrophy (DSMA) is a rare genetic disease that causes a loss of muscle movement. It affects muscles further away from the center of the body, such as the hands, feet, and legs.

Skeletal muscle atrophy, or wasting, is a devastating and often irreversible syndrome during the aging process and for patients with advanced cancer. Muscle wasting involves a decrease in muscle mass ...