1. Benefits of soaking feet before going to bed: In China, the custom of soaking feet before going to bed has existed for a long time. For example, Su Dongpo, a great scholar, put it very vividly: "My master advised me to wash my feet and sleep, so I wouldn't smell the bells and drums when I fell on the bed." There are also many folk sayings about soaking feet before going to bed, such as "soaking feet with hot water before going to bed is not as good as taking tonic regularly", emphasizing the health care function of soaking feet; "A bag of water in the morning and a bag of water before going to bed are not surprising, healthy and long-lived." Water bag means drinking water in the morning, and water jacket means washing feet before going to bed. It is pointed out that drinking water in the morning and washing feet before going to bed are good health care methods. "Keeping trees needs protecting roots, while keeping people needs protecting feet", which shows the importance of feet to human body. "Three hundred steps after a meal, a pot of soup before going to bed" also points out the importance of soaking feet before going to bed. Chinese medicine believes that "beginning of spring washes his feet and raises the yang; Washing feet in summer can dispel summer heat and dampness; Wash feet in autumn, moisten lungs and intestines; Wash your feet in winter, and Dantian is warm. " The above fully shows that soaking feet with hot water before going to bed is really good for your health.

2, precautions: soaking feet with hot water before going to bed is especially suitable for cold syndrome, such as always afraid of cold, cold hands and feet, accompanied by chronic diarrhea, dysmenorrhea, coronary heart disease, dysuria and other diseases. After soaking feet, you can also massage the reflex areas related to the soles of your feet, such as chronic prostatitis or prostatic hyperplasia, and massage the reflex areas of prostate and urethra.

3. For patients with fever, it is not advisable to soak their feet, such as high fever, bleeding, hot mouth and dry tongue. It should be noted that some people are not sensitive to temperature, or suffer from diabetes and varicose veins of lower limbs. Therefore, we should pay special attention to the water temperature, because such patients are prone to complex peripheral neuropathy, and peripheral nerves cannot normally perceive the external temperature. Even if the water temperature is very high, they will feel late and pure, and they will be easily burned. Some people are used to soaking their feet in red, thinking that the higher the water temperature, the better the effect.

4. Actually, the foot bath water should not be too hot, and it should be around 40℃. This is because: on the one hand, if the water temperature is too high, the blood vessels in the feet will easily expand excessively, and the blood in the human body will flow more to the lower limbs, which will easily lead to insufficient blood supply to important organs such as the heart, brain and kidney, especially for friends with cardiovascular and cerebrovascular diseases, which is tantamount to adding insult to injury.

5. On the other hand, if the water temperature is too high, it is easy to destroy the sebum membrane on the skin surface of the foot, making the stratum corneum dry or even chapped. Children who are developing should pay special attention to the fact that if they soak their feet with overheated water, the plantar ligament will be deformed and relaxed due to heat, which is not conducive to the development of the arch of the foot, and it is easy to induce flat feet after a long time.