Among folks, there goes a jingle, “Whoever eats eggs on the day of Start of Summer will have the strength to crush stones”, to the effect that if you eat eggs on the day of Start of Summer, you will be full of vim and vigor. On the day, children will wear egg nets made of silk around their necks and put boiled chicken and duck eggs inside, and some children like painting patterns on eggs. They will dash against each other to conduct strength competitions, which people call crashing eggs.

From the perspective of modern nutrition, the custom can somewhat hold water scientifically, for egg is the food of choice in summer to replenish the nutrition our body needs with speed. In summer, people tend to sweat heavily and lose a lot of physical strength. So, at the time, eating eggs can not only quickly replenish the energy but also improve the resistance to disease, which is very good to maintain the good health during scorching summer days.