The so-called bow action is handstand. There are generally two ways of handstand: handstand and hanging handstand. The main function of handstand is to improve the blood circulation of the head and lower limbs. After working for a long time, you can relax and relieve the pressure. Sedentary people can also relieve lower limb edema by standing upside down. But generally speaking, the handstand time should not be too long, not more than ten minutes a day. Keep a clear head when you stand upside down and don't let yourself fall asleep. The elderly, patients with hypertension and patients with brain diseases should not do handstand exercise, and Dachuan should not do handstand after meals.