Question

what is the primary cause of muscle atrophy?
○ genetic mutation
○ excessive protein intake
○ lack of exercise
○ aging

Explanation:

Muscle atrophy refers to the loss of muscle mass. While aging and genetic mutations can contribute to muscle loss in specific cases, the primary and most common cause is disuse, which is a lack of exercise or physical activity. Excessive protein intake does not cause muscle atrophy; instead, adequate protein is needed to maintain muscle mass. Disuse atrophy occurs because muscles require regular stimulation to retain their size and strength.

Answer:

Lack of exercise