There is no fixed time for foot soaking at night, you can decide the time of foot soaking according to your actual situation. Foot distribution more points, meridians, foot soak can promote blood circulation, speed up metabolism, a great benefit to health. Usually, around nine o’clock in the evening foot soak can play a role in nourishing the liver and kidneys. During this period, the body’s kidney meridian makes the qi and blood is relatively weak, the heat of water can promote blood circulation, increase the body’s heat, nourish the kidney meridian, so that the blood vessels expand, can eliminate fatigue, effective nourishment of the liver and kidneys. In addition, it should be noted that the water temperature of the foot bath should not be too hot, preferably between 40-55 degrees Celsius, each soak for about half an hour to sweat out slightly. If the evening time is too late it is not recommended to soak feet, so as not to lead to insufficient rest at night. Foot soak at the same time can massage the soles of the feet, can play a role in increasing the efficacy. In addition, the elderly is not recommended for a long time soak feet, so as not to cause brain hypoxia, children are not recommended to soak feet.