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.

Adult-onset spinal muscular atrophy (SMA) is a rare neuromuscular disorder that primarily affects the motor neurons in the spinal cord, leading to muscle weakness and atrophy. SMA is part of a group ...

Muscle loss, or atrophy, due to inactivity is common after illness, injury, hospitalization or falls, and becomes increasingly frequent with aging. New research published in Advanced Science shows ...