"The yin and yang of the four seasons are the root of all things. Therefore, sages nourish yang in spring and summer, and yin in autumn and winter, following their roots, and thus rise and fall with all things at the gate of growth," Mu Huaixi quoted a line from the Yellow Emperor's Classic of Internal Medicine. Seeing that Li Fengjuan and Wang Xiaohua were both confused, he smiled and explained, "Spring brings life, summer grows, autumn harvests, and winter stores. Traditional Chinese Medicine believes that to maintain health, one must follow the four seasons, nourishing yang in spring and summer, and yin in autumn and winter. That's why the old saying goes, 'Eat radishes in winter and ginger in summer.'"

"So this is what eating radish in winter means!" Wang Xiaohua suddenly realized, "I thought my mother made it up to trick me into eating radish!"

In fact, Chinese medicine has penetrated into every aspect of people's lives during its thousands of years of development. The elderly may not understand the principles behind it, do not understand the "correspondence between man and nature", and do not know how to regulate the spirit with the four seasons, but they pass down principles such as "eat radishes in winter and ginger in summer" and "don't sit on wood in summer and don't lie on stones in winter" from generation to generation.

Mu Huaixi smiled and continued, "In addition to the four-season health preservation, there is also the saying that spring is better than summer, summer is better than winter, and winter is better than summer. Therefore, diseases that are prone to winter illness can be cured in summer. This is what Fengjuan said about treating winter diseases in summer, and vice versa."

"What disease is it exactly? Besides, if it occurs in the summer, people will definitely seek treatment in the summer. If it doesn't hurt or itch in the winter, they will definitely not remember it." Wang Xiaohua shook her head. "I think Doctor Mu should focus on rheumatism and bone pain. There are so many diseases like this."

Mu Huaixi did not explain further. Summer diseases treated in winter are generally troublesome skin diseases, and she proposed this to put forward the concept first, so that she can promote the treatment of winter diseases in summer in spring. Her Sanfu Plaster is very famous!