What is the ancient health-keeping method of Chinese medicine "ringing the bell"? How is the health care effect?

The ancients believed that good teeth made people healthy, and health made people live longer. It can be seen that teeth are closely related to human growth and rise and fall. Sun Simiao, a famous doctor in the Tang Dynasty, also advocated "getting up 300 times in the morning". Su Dongpo, a great poet in the Song Dynasty, had the habit of knocking on his teeth to keep fit. He once said: "After midnight, put on your coat and sit cross-legged and knock your teeth 36 times, you will feel refreshed."

Emperor Qianlong was the emperor who reigned for the longest time and lived the longest in Qing Dynasty. One of the secrets of his longevity was "knocking his teeth frequently". Knocking teeth, also known as "ringing the bell", was a very popular regimen in ancient China. There is a saying in the folk proverb that "three hundred and sixty teeth can be knocked at once, but seven old people can't lose eighty teeth."

From the perspective of traditional Chinese medicine, saliva will increase in the process of knocking teeth, while traditional medicine believes that saliva can nourish the five internal organs. Modern medicine has also proved that saliva contains a variety of substances related to life activities, which can not only promote digestion and absorption, but also play an important role in nourishing yin and reducing fire, promoting fluid production and tonifying kidney, moistening skin and hair, and dredging joints and orifices.

Sufficient kidney essence, so the teeth are strong and not easy to fall off; Insufficient essence in the kidney, teeth are easy to loosen, and even fall off early. Tapping teeth can strengthen teeth and replenish kidney essence, so it can strengthen the kidney. The main function of knocking teeth is to strengthen teeth. If the teeth are healthy, food will be easy to chew, and the burden on the stomach will be reduced, thus achieving the effect of nourishing the stomach. The saliva produced by tapping teeth can reduce the burden on the spleen and stomach, thus achieving the purpose of strengthening the spleen and stomach. Teeth and bones are homologous and nourished by kidney essence. Percussion can replenish kidney and essence, which will naturally be beneficial to bones. Perseverance will inevitably achieve the function of strengthening bones.