Muscle atrophy refers to the reduction of muscle size and strength, which may be caused by many factors, such as age, disease, malnutrition, lack of exercise and so on. Excessive exercise may lead to muscle atrophy, but this usually happens in the case of long-term excessive exercise. Long-term excessive exercise causes the body to secrete a decomposable hormone cortisol, which will lead to muscle decomposition and fat increase.

If you want to avoid muscle atrophy, it is suggested that you gradually increase the intensity and time during fitness, and make sure to give your body enough rest time to recover. In addition, it is also important to maintain healthy eating habits to ensure that the body gets enough nutrition to support exercise.