It is often seen that some people eat quickly, even very hot food can be swallowed within 10 minutes. In fact, "chewing slowly" not only conforms to the way of keeping in good health, but also can play the health care role of saliva. Chinese medicine believes that "Qi is a medicine to prolong life, and it is a medicine to prolong life". Saliva has many magical effects. The ancients said that saliva can "moisten the five internal organs, please the skin, strengthen teeth, strengthen bones and muscles, promote qi and blood circulation, and prolong life". Specifically, saliva has the functions of quickly stopping bleeding, softening and contracting blood vessels, dissolving bacteria, killing microorganisms, strengthening teeth and kidneys, resisting viruses and helping digestion. Modern medicine has proved that saliva can not only kill microorganisms, strengthen teeth, help digestion, but also promote cell repair and growth factors, eliminate free radicals harmful to human body, and has a strong anti-cancer effect. Therefore, swallowing saliva and chewing for 30 times every meal can remove most harmful substances, which is good for your health.

Therefore, it is reasonable for people to say, "Swallow saliva 300 times a day and live to 190 times in a lifetime". Saliva is transformed into essence in the body, which has the function of nourishing and protecting the liver. The ancient books of traditional Chinese medicine say: "Five fluids are generated from five internal organs, the heart is sweat, the lungs are tears, the liver is tears, the spleen is saliva, and the kidney is saliva, which is five fluids." It means that saliva is formed by spleen and kidney, kidney is the innate foundation of human body, and spleen is the acquired foundation of human body. Spleen sages enrich the essence of the five internal organs and the rise and fall of qi and blood, so saliva contains many substances beneficial to human health and longevity, and also has a special role in nourishing and protecting the liver. Ancient doctors believed that people with enough saliva must be strong, and the condition was judged according to the rise and fall of saliva. Modern medicine has also proved that saliva contains various components in plasma, as well as 10 enzymes and nearly 10 vitamins, minerals, organic acids and hormones. There is also a salivary gland hormone in saliva, which can stimulate human hematopoietic function and delay the aging of various tissues and organs.

Contribute to human health and longevity. Pay attention to the method of swallowing. When not eating, the tongue often stirs in the mouth, which can make the water in the body rise to the mouth, turn it into saliva through salivary glands, and then swallow it slowly, which can nourish and protect the liver, strengthen the body and prolong life. This method is suitable for relaxing limbs, eliminating distractions and closing your eyes and mouth when you just get up in the morning or when you are free. The tongue first turns from the inside of the upper left gum to the right, then from the outside of the upper right gum to the left, then from the inside of the lower left tooth to the right, and then from the outside of the lower right tooth to the left, and so on for 9 times. Then tap the upper and lower teeth 36 times and rinse your mouth with saliva 9 times. Body fluids are spontaneous, gradually filling the mouth, divided into three times, and slowly swallowing. Another way to swallow saliva is to lie on your back or stand, hold your breath for a moment, gently exhale 3 breaths, and then hold your breath and grind your teeth. If there is food in your mouth, rinse your mouth with your cheeks and tongue 30 times.