Soda in hot springs is weakly alkaline, which contributes to acid-base balance and promotes metabolism. In addition, its antioxidant effect can prevent skin aging and beauty beauty. Low radon can form an active film on the surface of human skin, which can resist aging, prevent the generation of senile plaques and strengthen the consumption of excess sugar and fat in the body. It can be seen that the role of low radon dilute alkali hot springs in physical therapy, health care and health preservation can not be underestimated.