Prevent colds. Saliva contains lysozyme, which can kill oral germs and prevent bacterial infection. Chewing slowly when eating can increase saliva secretion, improve the body's immunity and help prevent diseases such as colds and flu.

Prevent dental caries. Doing more chewing can stimulate a lot of saliva secretion, which can not only neutralize the acid in food, but also make the calcium and phosphoric acid in saliva adhere to the tooth surface and repair the damaged enamel, thus playing a role in preventing oral diseases such as dental caries and periodontal disease.

Lose weight. Chewing can stimulate the satiety nerve center, suppress appetite and help to lose weight.

Show youth. Saliva contains salivary gland hormones, which can promote the division and proliferation of skin cells and maintain skin elasticity. The benefits of chewing more are self-evident.

Promote digestion. Saliva contains digestive enzymes, which can help the gastrointestinal tract digest food, so it is scientific for elders to say that eating should be chewed slowly.

Strong teeth. Always eating soft food, chewing less often, will lead to jaw degeneration, thus making gums fragile. Therefore, we should eat more hard food, chew more, exercise mandibular strength and improve gum health.

Anti-aging peroxidase contained in saliva can inhibit human reactive oxygen species and reduce the risk of cancer.

Rich expression. Chewing will exercise the muscles around the mouth, making facial muscles firmer, lines clearer, expressions richer and more flexible.

Improve brain function. Chewing food requires opening the upper and lower jaws, which can enhance the oxygen supply to the brain, thus activating brain cells and improving people's judgment, concentration and memory.