Cold drinks have the effects of relieving summer heat, reducing烦闷 and thirst, and clearing fire and removing irritability. Therefore, in the scorching summer, everyone likes to eat cold drinks, but not everyone is suitable for eating them. Infants and young children, because their gastrointestinal tracts are not yet fully developed, are extremely sensitive to the stimulation of cold drinks, which can cause symptoms such as diarrhea, abdominal pain, sore throat, and cough, and can also induce tonsillitis and pharyngitis. Infants under 6 months of age should be forbidden from eating cold drinks.
Women during their menstrual period who overindulge in cold drinks may cause the small blood vessels of the pelvic organs to contract and spasm, leading to dysmenorrhea and even fainting, so it is advisable to eat less. For women during pregnancy and childbirth, a large amount of cold drinks entering the abdomen can intensify uterine contractions, which is detrimental to the fetus and may even cause a miscarriage. The elderly, due to the decline in digestive function, have a reduced tolerance to cold drinks. If they consume a large amount of cold drinks, it can cause digestive dysfunction and induce gastrointestinal diseases, so they should eat less or avoid them. People suffering from gastrointestinal diseases such as acute gastroenteritis, chronic enteritis, and duodenal ulcer, due to damaged gastrointestinal mucosa, have a lower tolerance to cold and should not consume too much of it. When a large amount of cold drinks pass through the esophagus and stomach of patients with cardiovascular diseases, it can cause contraction of the adjacent coronary arteries, which can induce angina pectoris, hypertension, and arrhythmia. Therefore, patients with diseases such as hypertension and coronary heart disease should eat less cold drinks when their condition is more severe. >Patients who are sweating, regardless of their illness, should not consume cold drinks while they have a fever and are sweating. Because cold water entering the stomach can cause the small blood vessels on the body surface to contract and the sweat glands to close, stopping sweating, which is very unfavorable for heat dissipation. >Patients with chronic diseases with a weak constitution and cold spleen and stomach have poor digestive function, often prefer warmth and fear cold, and consuming a large amount of cold drinks can lead to a worsening of their condition. >People who have just finished strenuous exercise, due to excessive sweating and high water consumption, are often extremely thirsty and tend to overindulge in cold drinks. This can cause a sharp drop in gastrointestinal temperature, leading to the closure of sweat glands and cessation of sweating, disrupting the heat dissipation function and easily inducing various diseases. >Patients with dental caries may experience toothache when exposed to cold, and it can lead to a decrease in the teeth's resistance to disease, making it easy to induce other dental problems, so patients with dental caries should not eat too many cold drinks.