1. Physical fatigue, physical strength can not stand. You may be overworked, making you physically and mentally exhausted and lacking in energy. In this case, it is recommended to pay more attention to rest and replenish energy in time while maintaining adequate sleep. Doing more exercise will also enhance immunity.

2. Insufficient blood supply in the body, which is often called anemia. This is related to a person's physique. It is recommended to eat more blood-enriching foods, such as red dates and medlar.

3. The joint is inflamed. This kind of situation mostly happens to the elderly. It is recommended to go to the hospital for a careful examination and take medicine and exercise on time according to the doctor's instructions.

4. After the exercise, it suddenly feels hard to squat and stand up, because the knee joint is overworked. If you feel serious, you can go to the hospital for a detailed examination, mainly paying attention to the knee joint and waist. If you don't feel serious, you can have a little rest, which may just be caused by excessive exercise. Generally speaking, it's nothing serious.

In short, people still need to exercise regularly. Moderate exercise can not only relieve fatigue, but also make them happy physically and mentally. After that, it's easy to take a bath and exercise.