A "virtue", Lv Kun, a health care expert in the Ming Dynasty, said: "Benevolence can live a long life, virtue can prolong life, and fostering virtue and health care is the first priority."

Second, "An", Su Dongpo, a writer in the Song Dynasty, believes that life lies in the words "An" and "He". "Harmony" is meditation and "harmony" is satisfaction.

Three precepts, Confucius said: "A gentleman has three precepts. When you are young, your blood gas is uncertain, so quit it; It is also strong and bloody, and it is fighting; I am also old, my blood gas is declining, and I have to quit. "

Wan Mizhai, a medical scientist in the Ming Dynasty, pointed out: "There are four ways to maintain health: one is lack of desire, the other is caution, the third is punctuality, and the fourth is illness."

Five "knowledge", Zhou Shouzhong said in the Song Dynasty: "Knowing the harm of ambition, we can get rid of it; Knowing and doing sells god, so I hurt my feelings and hide it in my heart; Knowing words annoys the spirit, so I keep my mouth shut and forget my words; Knowing that sorrow and joy will damage life, it will be suppressed without it; I know that lust stole my life, so I put up with it. "

Jiang Qishi, a medical scientist in Ming Dynasty, said: "Restrain lust and nourish essence, worry and nourish spirit, anger and nourish liver, diligence and strength, consideration and nourishing heart, and sorrow and nourishing lungs."

Seven "food", Qing dynasty health expert Shi pointed out: "food should be early, not later; Eat slowly, don't be rough; Eat 89 points, don't be too full; Food should be light, not too thick; Food should be warm, not cold; Food should be soft and rotten, not hard; After eating, drink two or three mouthfuls of tea and rinse your mouth to make your teeth extremely clean. "

Eight "music", Shi's "eight music" are: sitting quietly, reading, enjoying flowers, playing with the moon, watching paintings, listening to songs, singing wildly and sleeping deeply.

Nine "thoughts", Confucius said: "A gentleman has Jiu Si: seeing clearly, listening attentively, thinking enthusiastically, looking respectfully, speaking faithfully, thinking respectfully, asking clearly, thinking resentfully and seeing morality."