The summer weather is hot, sweating, children drink cool drinks, not only to quench thirst, replenish body moisture, but also to prevent heatstroke, however, such as drinking improperly, is prone to disease. Some parents are obsessed with meeting the requirements of their children, unrestrainedly give children to eat cold drinks, the result affects the health of children, especially for children’s gastrointestinal function more. Children’s spleen and stomach function is weak, the gastrointestinal mucosa is more delicate, more sensitive to hot and cold stimulation, such as often over-eating cold drinks, gastrointestinal mucosa by the persistent cold stimulation, causing gastrointestinal vasoconstriction, slow blood flow, resulting in gastrointestinal tract dysfunction. Can also affect the normal secretion of gastric juice and normal peristalsis of the gastrointestinal tract. A large number of cold drinks into the stomach, the stomach acidity is reduced, its bactericidal effect is weakened, thus causing loss of appetite, indigestion, abdominal pain, diarrhea and inflammation of the gastrointestinal tract, at the same time, due to cold stimulation, intestinal peristalsis increased, food in the small intestine to shorten the residence time, poor digestion, the absorption of nutrients is affected, which is detrimental to the child’s organism, growth and development. Cao Hong, Department of Pediatrics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine In addition, the mucous membrane of the pharynx of children is also very delicate, rich in blood vessels, eat cold drinks, the blood vessels there are prone to contraction, blood flow is relatively reduced, local resistance is reduced, so that the bacteria and viruses lurking in the throat can take advantage of the situation, causing colds, pharyngitis, tonsillitis and other upper respiratory tract symptoms. In addition, some cold drinks do not meet the health standards, but also easy to cause gastrointestinal diseases. So parents should not let their children eat too many cold drinks, so as not to affect their health.