2. Because soaking feet has the function of health care and disease treatment, soaking feet every night before going to bed can relieve the fatigue of a day's work, fall asleep quickly, improve the sleep state, and is especially beneficial to restoring physical strength, and has a conditioning effect on local symptoms of lower limbs such as venous vascular diseases, itchy skin, pain and numbness. Moreover, if you often soak your feet, you can also promote the blood circulation of the human body, thus speeding up metabolism and discharging wastes from the body. In addition, it can help people with deficiency cold to expel moisture from their bodies. However, it should be noted that the water for soaking feet should be determined according to your physical condition.