There is a folk saying “eat radish in winter and ginger in summer, no need for doctors to prescribe”, many people may not understand why they have to eat cold radish in winter and hot ginger in summer? In fact, the “Yellow Emperor’s Classic of Internal Medicine” says “Spring and summer nourish Yang, autumn and winter nourish Yin”, which explains this problem. In summer, the human body’s qi is cold compared to the outside temperature. It is the pattern of Yin, so in summer we need to eat something hot to balance the cold in our body. And if I eat and drink a lot of cold drinks at this time, it is equivalent to cold on cold, which will damage our body. The body’s qi in winter time, and the outside temperature than. Its inside is of warmth. It is the pattern of Yang. So in winter time we need to eat something cool to balance the warmth in our body. So that the yin and yang in the body is balanced. This is the reason why “eat radish in winter and ginger in summer”. As long as you eat well, sleep well and don’t go against nature, your body will be fine. So, you can eat something cold in winter, while in summer you must drink warm water to not damage the stomach qi.