Soaking feet with hot water is medically called foot bath. Foot bath has been very popular in China since ancient times. For example, according to the law that spring gas dominates the rising, long summer dominates the dampness, autumn gas dominates the dryness, and winter gas dominates the cold all year round, it is believed that people must adapt to the four seasons to be healthy, and summed up that "spring foot bath, rising yang and solid off; Soaking feet in summer can get rid of dampness; Soak your feet in autumn and nourish your heart; Soak your feet in winter and your abdomen is warm ",so if you can persist in soaking your feet with hot water every day, you can achieve the goals of disease prevention, disease elimination, health care and physical fitness." "

The human body has six meridians (Foot Yangming Stomach Meridian, Foot Taiyin Spleen Meridian, Foot Shaoyang Gallbladder Meridian, Foot Taiyang Bladder Meridian, Foot Shaoyin Kidney Meridian, Foot Jueyin Liver Meridian) which converge at the foot; The five internal organs of the human body have opposite acupoints on the feet. Soaking feet with hot water, rubbing and massaging hands with hot water can stimulate foot acupoints, dredge meridians and qi and blood, promote qi and blood circulation of zang-fu organs, and regulate zang-fu organs' functions. Especially for the stomach, it can enhance its function, promote its peristalsis, facilitate defecation and prevent constipation.

Modern medical research has proved that hot water (including rubbing hands when soaking feet) can gently stimulate the rich nerve endings of the feet and reflect them to the cerebral cortex, which has the function of regulating the functional activities of the nervous system and various tissues and organs of the whole body and promoting blood circulation and metabolism. In particular, it can enhance gastrointestinal function, promote and regulate gastrointestinal movement, and hot foot bath has a good effect on preventing constipation.

In addition, human ears, nose, hands, feet and so on. There are areas or zones corresponding to human tissues and organs, which are sensitive reflection areas. Soak your feet with hot water, and your feet will receive warm stimulation, that is, information will be transmitted to the whole body, which will promote the circulation of qi and blood and coordinate the functions of viscera. Therefore, if you dry your feet after foot bath and cooperate with foot massage, you can enhance the function and effect of fitness and constipation prevention. People's feet are the foundation, and hot foot bath can cure diseases. Long-term foot soaking can prevent constipation, strengthen the body and prolong life.