It is not suitable to go out in the morning, so stretch your muscles on the bed, sit on the bed, straighten your legs, and put your hands across your toes as much as possible. This is a very useful softening technique, which can stretch your liver, bladder, gallbladder, kidney, stomach and spleen. Every time you breathe, you will face your leg once. When you breathe in, you must not go back. Hold on for three minutes, and finally it will pass. Then you will know how powerful this kung fu is-legs are much higher than others and feet are much more stable. None of them can beat you.