Su Shi was a literary leader in the mid-Northern Song Dynasty. He has made great achievements in poetry, poetry, writing, calligraphy and painting, and has a lot of experience in health preservation. He once wrote about keeping in good health and put forward the principle of "three educations".

The so-called "three-support" means to rest and be happy, broaden your stomach and nourish your qi and save money. The article also mentioned what he heard during the Warring States period, saying that it was "four kinds of medicine": first, nothing is expensive; second, going to bed early means money; third, walking safely means cars; fourth, eating at night means meat. In other words, we should treat peace as a dignitary, go to bed early as a rich man, walk slowly as a chariot and horse, and postpone eating as a delicacy.

Cultivating the body first raises the heart, and keeping one's duty safely can nourish the points of wealth; Subtraction should be done in health care, so that the stomach can be relaxed, the gas can be stored, and expenses can be saved to support the family; Health care should follow the law, go to bed early and get up early, keep enough sleep, don't be greedy, you can enjoy delicious food when you are hungry, do more exercise and exercise regularly.

It can be seen that there is no trick to health preservation, just follow the rules.