At the beginning, I felt very tired after playing a set of exercises, and I felt that the pulse had been transported to the branches. This may be a sign of lack of vitality. After practicing, the pulse reaches the whole body and I feel very tired. You will sweat profusely after the fight. Please be careful not to blow at this time. Also, because the qi pulse has reached the limbs, you need to sit still immediately 15 minutes, and put your left hand under your right hand to automatically gather the qi pulse, which will relieve fatigue.