Is drinking water below body temperature harmful to your health?

The temperature of cold water is generally below 10℃, and the temperature of ice water is generally 0℃, depending on the ice content. There is a big gap between such water temperature and human body temperature, so drinking it will cause a strong physiological reaction. Ingesting cold water will make the surface blood vessels of the mouth, esophagus and stomach contract rapidly, which will slow down the blood circulation in this part. Because the blood vessels in the digestive tract bear the important task of absorbing and transporting nutrients, when the blood circulation slows down, it will affect the digestion and absorption function. Therefore, when eating, it is not recommended to drink ice water and cold drinks below 10℃, because this is not conducive to the digestion and absorption of food, especially friends with weak gastrointestinal function, which may cause indigestion, gastrointestinal cramps and other discomfort, that is, the old people often say, "cold and heat are combined, and it is easy to have a stomachache."

We drink warm but not hot, usually 40-50℃. Because our mouth and esophagus are covered with mucous membranes, the normal physiological temperature is 36.5-37.5℃, and the eating temperature should be kept at 10-40℃ to maintain normal physiological functions, and the maximum tolerance temperature is 50-60℃. Warm water can improve blood circulation and help digestion. It can also relieve migraine and dysmenorrhea and make people feel comfortable. Chinese medicine believes that water can nourish yin, heat can warm yang, and warm water is also beneficial to health. Drinking more hot water is not everything.

It may actually harm your health. Many people eat hot food, and their mouths and tongues are uncomfortable. The first reaction is not to spit it out, but to chew it twice and swallow it. In fact, this is a very bad habit. You know, the epithelial cells on the surface of the esophagus are much more fragile than those in the mouth. Swallowing what you can't stand in your mouth will only damage your esophagus. Touch the water with your lips before drinking water. If your lips feel that water is hot, you shouldn't drink it any more.

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