Soak your feet with hot water can dispel wind, pass through, disperse cold, but also regulate plant nerve function and improve sleep. The foot is in the lower part of the body, the weakest place of Yang Qi, walking or contact with the ground foot contact with the cold is the largest, so the most vulnerable to cold. The foot is also the place where many meridians meet each other, so if the foot is cold, there will be a meridian failure, so many people will have arthritis, cold lower extremities, varicose veins in the lower extremities and lower extremity Yang Qi deficiency, Qi and blood failure, meridian failure is related. Frequent foot soaks with hot water or foot soaks with medicinal water cooked with ginger and mugwort can improve the coldness of the lower extremities and play a role in draining wind and dispersing cold and activating the meridians. At the same time, the foot also has a role in improving sleep and plant nerve function, such as women’s menopausal syndrome, insomnia, forgetfulness, because the foot has Chung Quan and other more important kidney points, and the kidney is the main bone, marrow, through the brain complex, so stimulate these points, with warm methods can improve the activity of these points, improve plant nerve function problems.