First, increase the body's adaptability to temperature, especially to the air, and it is not easy to catch a cold.

Secondly, it is a good exercise for human blood vessels. When taking a cold bath, the blood vessels contract rapidly, and a large amount of blood flows to the inside of the body and then to the body surface, and the blood vessels expand and contract. In the long run, cardiovascular diseases can be prevented.

Third, it can exercise people's will. Bathing in summer is enjoyable, and bathing in winter requires perseverance. Harming different personal constitutions will lead to different diseases. During the cold and illness, taking a cold bath is not conducive to the discharge of heat and toxins in the body.

Best method

When cooling with a cold water bath, it is not advisable to suddenly immerse in cold water at first. It is best to splash some cold water on your body with your hands or shower head, or wet your hands and feet with cold water first, and then wet your chest and back with a towel. Rub your body for a while, and cold water will soak you through and dry quickly until your skin turns red, which means the effect is good. If you feel cold, you should shorten the shower time or raise the water temperature.