In which era was the author of The Theory of Food a doctor?

The author of "On Food" is Hua Tuo, an imperial doctor in the Eastern Han Dynasty. Hua Tuo was born around 145 A.D., when the Eastern Han Dynasty had entered the late reign. In troubled times, Hua Tuo was obsessed with medical research, so he began to travel around since he was a teenager. With long-term study tour experience and hard study, Hua Tuo has mastered very superb medical skills. He is very proficient in internal medicine, pediatrics and gynecology, especially in surgery. Hua Tuo's medical skill was superb, and he enjoyed a high reputation at that time, so he was honored as a wonderful doctor.

There are many records about Hua Tuo's medical experience in history books. Among them, in the Three Kingdoms? According to the biography of Chen Deng, 36-year-old Chen Deng asked Hua Tuo for treatment because of his unusually red face and unreasonable irritability. After the diagnosis, Hua Tuo first prepared a dozen washbasins, and then helped Chen Deng spit out a lot of red bugs. After the diagnosis and treatment, Hua Tuo told Chen Deng that the disease was caused by eating fish and would recur after three years. Take the medicine again and it will be completely cured. Three years later, Chen Deng was really ill again. However, when he sent someone to find someone according to the address left by Hua Tuo earlier, he was told that Hua Tuo was out collecting medicine and didn't know when he would come back. Finally, Chen Deng died at the age of 39 because he didn't know how to treat him in time.

Besides Chen Deng, Hua Tuo also treated Zhou Tai, Cao Cao and others, among whom he died in Jiuquan for offending Cao Cao. Cao Cao often has a headache because of head wind, so he invited Hua tuo to treat him. However, because the disease could not be cured overnight, Hua Tuo was left to Cao Cao for a long time. But after a long time, Hua tuo remembered to hang his wife at home, so he took a few days off to visit at home. After returning home, Hua Tuo found that his wife was ill, so he wrote to ask for a few more days off.

After that, Hua Tuo repeatedly asked for an extension of the holiday. His action aroused Cao Cao's dissatisfaction, and he also wondered whether Hua Tuo really stayed at home because his wife was ill. After Cao Cao sent someone to confirm, he learned that Hua tuo's wife had recovered, so he sent someone to arrest Hua tuo. Later, Hua Tuo died in prison for being tortured. Before he died, Hua Tuo wanted to explain his medical skills to the prison history, and the medical book was Bao Qing Shu. However, this medical skill has not been circulated in the world because there are only one or two pages left in the fire.

As for the book On Diet, it is actually more like Hua Tuo's summary of his views on diet. For example, Hua Tuo thinks that there are three kinds of food: one is cremation, the other is decomposition; Take a bite and chew it carefully; A belly, into the stomach and self-transformation. ? In addition, some ideas in On Food also involve drinking tea for health, such as? Bitter tea for a long time. .