Dog days are the hottest time of the year, and people are prone to get sick, so people should pay attention to keeping healthy in dog days. Generally speaking, lying on the head is also called "rest", "washing all diseases" and "putting on weight". In the past, people's living conditions were very poor, and they had a bad appetite in the cold summer. They had just finished harvesting wheat when it was dark. Eating jiaozi is a way to improve their lives. Eating hot noodle soup makes you sweat, which can remove moisture and summer heat from your body. It's autumn in dog days. Eating cake and eggs can supplement nutrition, on the one hand, it means to send away the dog days. Therefore, it has been passed down from generation to generation that "jiaozi is prone to falling, pancake stalls are prone to falling eggs ..."!