As the saying goes, "Winter Solstice jiaozi Summer Solstice Noodles", as early as ancient times, people had the custom of eating noodles in the summer solstice season. Summer solstice noodles, also known as "falling noodles", are a custom of the Han nationality and spread in most parts of the motherland. Because new wheat has appeared in the summer solstice, eating noodles in the summer solstice also means tasting new things.

Every year, on the Winter Solstice of the Lunar New Year, jiaozi is an indispensable holiday meal, regardless of the rich or the poor. As the saying goes, "On October 1st, when the winter solstice comes, every family eats dumplings." This custom was left in memory of Zhang Zhongjing, a "medical sage", who gave up medicine on the winter solstice.

Zhang Zhongjing is a native of Gedong, Nanyang. He wrote Treatise on Febrile Diseases, which is a masterpiece of doctors and is regarded as a classic by doctors of all ages. Zhang Zhongjing has a famous saying: "If you advance, you will save the world; if you retreat, you will save the people;" You can't be a good doctor, but also a good doctor. " In the Eastern Han Dynasty, he served as the prefect of Changsha, visiting the sick and applying medicine, and practicing medicine in the lobby. Later, he resolutely resigned and returned to his hometown to treat his neighbors. When he returned home, it was winter.