According to modern scientific research, saliva not only contains water, but also contains amylase, lysozyme, mucin, globulin, bile iron lactate, calcium phosphate, amino acids, potassium, calcium, chlorine and other essential components for human health. These are all beneficial substances.

Saliva has eight functions for human health:

One is lubrication.

Saliva contains mucin, which can make the mouth smooth and soft.

The second is the flushing effect.

Can wash away food residues and keep the mouth clean and hygienic.

The third is dilution.

When acid, bitter taste and other irritating things enter the mouth, saliva secretion increases and is diluted, which is convenient for spitting or swallowing.

The fourth is antibacterial effect.

Various organic and inorganic components in saliva have certain antibacterial effects through different mechanisms, which can prevent inflammation of mouth, throat and gums.

Fifth, stop bleeding.

Saliva can promote blood coagulation and help stop bleeding when oral trauma or tooth extraction causes bleeding.

The sixth is digestion.

Saliva contains a large amount of amylase, which can hydrolyze starch into maltose and be easily absorbed.

Seventh, the treatment of injuries.

There is a nerve growth hormone in saliva, which can significantly shorten the wound healing time and accelerate the healing of burned skin.

Eight is the anti-aging effect.

Saliva contains a kind of "salivary parotid hormone" that can keep people young. It can make people smart, have firm teeth and strong muscles, so that they will be flushed even when they are old and will not lose their youthful vitality.

It can be seen that "saliva" is precious and should not be wasted or discarded at will. We should be good at promoting the secretion of saliva, so as to achieve the purpose of strengthening the body and prolonging life.