(1) Promote blood circulation: the foot has been said to be the second heart of the human body since ancient times. According to the health theory, the feet are farthest from the human heart and bear the heaviest burden. So this place is most likely to lead to poor blood circulation, especially people who often feel cold hands and feet. Soaking feet with hot water is an excellent method.

(2) Stimulating the acupoints, reflex zones and meridians of the foot: There are six meridians in the human foot, including the end points of three yang meridians (bladder meridian, stomach meridian and gallbladder meridian) and the beginning points of three yin meridians (spleen meridian, liver meridian and kidney meridian), all of which are in the foot. So soaking feet with hot water is equivalent to stimulating these six meridians.

(3) It has a good auxiliary effect on the treatment of various diseases: soaking feet with traditional Chinese medicine can accelerate the elimination of cold in the body.