URGENT:COVID prophylaxis | Vitamin D | Latest research | NIH | CDC | Worldometer
A decrease in muscle bulk due to a lack of exercise, as when a limb is in a cast for a prolonged period. Muscle atrophy is the wasting or loss of muscle tissue. Stimulation of nerves with a mild electric current can keep muscular tissue viable until full activity can return. In severe cases, the muscle fibers are actually lost and replaced with connective tissue.
Also see Spinal muscular atrophy