The benefits of frequent swallowing 1. Digestive saliva contains a lot of amylase, which can hydrolyze starch into maltose and make it easy to be absorbed. Second, the hemostatic effect saliva can promote blood coagulation. When oral trauma or tooth extraction causes bleeding, saliva can help stop bleeding. Third, the dilution effect When acid, bitterness and other irritating things enter the mouth, saliva secretion increases, and it is easy to spit or swallow after being diluted. Fourth, the flushing effect The doctor reminded that toothpaste can only clean the mouth and cannot whiten the teeth. Moreover, saliva can wash away food residues and keep the mouth clean and hygienic. It can be seen that saliva has the health-preserving function of cleaning teeth and protecting oral hygiene. 5, lubrication saliva contains mucin, which can make the mouth smooth and soft. Land, anti-aging effect Saliva contains a salivary parotid hormone, which can keep people young, make people smart, have firm teeth and strong muscles, so that even if people are old, they will be flushed and will not lose their youthful vitality.