Is drinking more hot water really good for your health?

Is it really good for your health to drink more hot water and less ice water? According to relevant data, drink more hot water, whether it is stomachache, fever or being patronized by them during menstruation, most old people say "drink more hot water". Is it reasonable to drink so much hot water? Water occupies a large part of our life, accounting for 60%-70% of our body composition. The human body needs enough water supply to maintain a healthy state, which indirectly shows that water is the source of life. From nutrient absorption, blood circulation, metabolism, to body temperature regulation, urinary system balance ... these are inseparable from the credit of water. In Huangdi Neijing, there is a record of "treating soup by disease"; Mencius also has the expression of "drinking soup in winter"; It is said in Shuo Wen Jie Zi that "soup is also hot water", and "soup" here means hot water. It is not difficult to find that the habit of drinking hot water has a history of thousands of years in China. Until now, people can still hear all kinds of sayings about drinking more hot water. Cold, drink more hot water, cough, drink more hot water, stomach upset, drink more hot water and so on. Actually, drinking more hot water is good for your health. First, speed up metabolism. The warming effect of water can stimulate the secretion of human hormones, thus improving the metabolic capacity of the human body and better discharging the garbage and toxins in the body. Simply put, it is to stimulate the body through temperature difference, make the body function "active", promote blood circulation, and make the body sweat. Second, prevent and treat colds. When people catch a cold, the content of virus or bacteria in blood is higher than that in healthy state. Drinking more hot water helps to promote metabolism, thus helping the body to "transport" waste out of the body faster and promoting the rehabilitation of patients with colds. At the same time, drinking more hot water can also relieve cold symptoms, such as helping nasal ventilation. Third, promote digestion and reduce constipation. Drink more hot water, when the water flows through the stomach, it can help metabolism and help the digestive organs to better absorb what they have eaten. Moreover, many people are constipated because the feces in the body are too dry, or the intestinal organs lack motivation. At this time, drinking more hot water can promote intestinal peristalsis, which is conducive to fecal discharge. Fourth, you can keep warm. Although the body temperature is 37, it is not uniform, only the core area is 37, and the hands and feet are obviously not so hot. In winter, due to the decline of physical function, blood circulation will become very slow, so my hands and feet are cold and I don't want to move. If we let the blood circulate, let the blood in the core area flow to other places, and then let the cold blood flow back to the core area, and so on, people will naturally warm up. Therefore, drinking more hot water is good for your health. But drinking too much water will also put a burden on the body. For example, people with poor kidneys, that is, people with diabetic complications, drink more water will increase the burden on the heart and kidneys, and people with heart disease, hypertension and kidney disease will make lower limbs edema. Therefore, drinking water varies from person to person, and the continuous maximum diuresis speed of human kidney is 16 ml per minute. Once the human body ingests a lot of water in a short time, or the drinking speed exceeds this standard, it will cause discomfort to patients. Finally, remind everyone that hot water is good, but the hotter the better! Everyone must pay attention to the water temperature when drinking hot water. The water we drink needs to pass through our mouth and esophagus to reach our stomach, but the mucosa of the mouth and esophagus where hot water passes is very fragile, and the high temperature we can generally tolerate is between 50 and 60 degrees Celsius. Because our esophagus is not as sensitive to temperature as the mouth, when people drink hot water or eat hot food, they are usually afraid of burning their mouths and swallow it quickly. At this time, the esophageal mucosa is very easy to be burned, which is very easy to cause chronic injury and inflammation of the esophageal mucosa. Studies show that the hot drinks we drink should not exceed 65℃. The World Health Organization classifies hot drinks above 65℃ as Class 2A carcinogens, which means that hot drinks above 65℃ (including water) will damage mucosa and esophagus. Data show that the temperature of gastrointestinal tract is about 37.5 ~ 38 degrees Celsius, so it is best to drink water at 35 ~ 40 degrees Celsius. The saying that "drinking cold water is harmful to health" is often circulated on the Internet, so now many people naturally think that cold water is harmful to health. Is drinking cold water harmful to your health? In fact, this statement is sheer nonsense. For most people, both cold water and hot water can be adapted by the body. In other words, drinking cold water is harmless to your health. The reason why people in China think that drinking cold water is harmful to their health is because the sanitary conditions of ancient water use are extremely poor. If the water is not boiled, it is easy to get sick from microorganisms in the water, such as diarrhea. In the eyes of the ancients, it was because the gastrointestinal tract was eroded by cold toxin that "internal cold" appeared, which was harmful to the body. However, using modern microbial knowledge, we all know that drinking raw water is unhealthy because there are bacteria and viruses in the water. As long as it is boiled at high temperature, there will be no big problem. Moreover, tap water used by almost every household has been strictly purified and can be directly drunk. In addition, some studies have found that other countries rarely have the habit of drinking hot water, such as Japan, South Korea and some European and American countries. Everyone drinks cold water, even in the special period when women come to give birth to children. Even so, they are not sick. Conclusion. To sum up, hot water is not as magical as "curing all diseases", and cold water is not as bad as everyone thinks. The key is to see the safety of water quality. In short, drinking cold water or hot water mainly depends on personal preference. Personally, people who don't like hot water should also drink cold water. Try not to drink raw cold water.