The most common factor is excessive exercise the day before or incorrect exercise methods, resulting in anaerobic glycolysis or too much anaerobic exercise. The most common factor is the excessive amount of anaerobic glycolysis or anaerobic exercise from the previous day. 2. The body aches and pains can occur when the incorrect exercise method causes muscle stretching and strain, resulting in rhabdomyolysis. 3. In the early stage of the cold, there is no fever in the body, but the pyrogen will lead to the release of inflammatory factors and lead to body aches and pains.