Modern medical research shows that drinking cold water is related to the occurrence of irritable bowel syndrome and gastroenteritis, especially when a large number of frozen drinks are ingested at one time, the gastrointestinal tract is suddenly subjected to intense cold stimulation, capillary contraction, smooth muscle spasm, and it is easy to cause stomach pain, abdominal distension, abdominal pain, diarrhea and other discomfort.

Traditional Chinese medicine believes that warm drinking into the stomach has the function of warming the soil and yang, which is beneficial to the decomposition of Shui Gu in the stomach, the transport of Shui Gu in the spleen, the production of subtle nutrients, and the promotion of digestion and absorption, blood circulation and metabolism of the human body.

Extended data:

Drinking hot water is really good for your health. The nature of water is cloudy and cold, and properly raising the temperature of water can balance the cold and cool nature of water. Drinking cold water or frozen drinks often can easily damage the yang of the spleen and stomach and cause gastrointestinal discomfort. Many people are used to drinking cold drinks to quench their thirst. If you do this for a long time, it is easy to cause weakness of the spleen and stomach, form a constitution of deficiency and cold, and have symptoms of fear of cold, tepid hands and feet, and stomach cold.

In addition, not only hot water, but also most warm foods can dispel cold, which is especially suitable for people with deficiency-cold constitution and plays an auxiliary role in the treatment of some cold diseases.

References:

Drink more hot water for health and treatment? Drinking cold water hurts yang-People's Network