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How about drinking ice water?
Drinking ice water often is harmful to your health.

Ice water is harmful to the function of the stomach. The body is hot in summer, and then drinking ice water at once stimulates the throat first. Blood vessels in a state of congestion will suddenly contract, blood will decrease, and bacteria hidden in them will take advantage of it, which will easily lead to sore throat, hoarseness, or colds and coughs, which will adversely affect health.

Ice water stimulates the stomach, causing the blood vessels in the stomach to contract suddenly, reducing the blood supply to the stomach suddenly, and may lead to stomach cramps, abdominal pain, nausea and so on. Drinking warm boiled water is more beneficial because it helps the body absorb it.

Excessive drinking ice water will also affect the development and physiological function of reproductive system, especially for some girls, regardless of whether they are menstruating or not, drinking ice water or cold drinks at will cause menstrual disorder and dysmenorrhea. Cold gathers in the uterus and even hides the disaster of infertility after marriage. Excessive drinking of ice water by boys will also affect sperm development. In addition, ice water can also cause harm to the throat, vocal cords and respiratory system.

Extended data

Theoretically, when you drink ice water, your body temperature will drop. In order to warm up, the body needs to burn more fat. But the body actually consumes much less calories during the warm-up process. At present, this is only a hypothesis, and there is no effective and rigorous scientific research to prove it. And drinking ice water can cause abdominal pain or diarrhea. Therefore, drinking more water and properly controlling food intake is much more effective and healthy than drinking cold water blindly.

Drinking cold water for a long time will slow down the blood circulation of peripheral nerves of limbs, affect the speed of human body's metabolism of waste, make it easy for the body to accumulate too much toxins, and make the body slowly lose shape and get fat. Therefore, we should drink more warm water instead of ice water to dilate blood vessels and improve circulation problems.

Baidu Encyclopedia-Ice Water (Chinese term)