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How much water is the most suitable for drinking a day?
Water is the source of life, and all human life activities are inseparable from water. For the human body, water is not only the carrier of "transporting" various nutrients in the body, but also directly participates in the metabolism of the human body. Therefore, it is very important to ensure adequate water intake for the normal operation of human physiological functions. However, many people's understanding of drinking water is limited to quenching thirst. In fact, drinking water is also a science, and drinking water correctly is very important for maintaining people's health. The amount of water you drink varies from person to person. Dr. Yong Cheng, director of the Department of Nephrology, Shenzhen Second People's Hospital, said that generally speaking, the amount of drinking water every day should at least be balanced with the water consumption in the body. The amount of urine excreted by human body in one day is about 1 1,500ml, and the total water consumption is about 2,500ml, while the water that human body can metabolize and replenish from food and body is only about 1 1,000ml, so normal people need to drink at least 1 1,500ml of water every day, about 8,000ml. Usually, how much water each person needs to drink varies according to the activity, environment and even the weather. Drinking more water for normal people will not have much impact on the body, but it may lead to increased urination and inconvenient life. However, for some special people, we must pay special attention to the amount of drinking water. For example, patients with edema, heart failure and renal failure should not drink too much water, because drinking too much water will increase the burden on the heart and kidneys and easily lead to aggravation of the disease. For patients with heatstroke, cystitis, constipation, dry skin and other diseases, drinking plenty of water can play a certain role in relieving the disease. In addition, people should drink more water when they have a cold and fever, because rising body temperature will cause water loss. Drinking more water can promote body heat dissipation and help patients recover. Pregnant women and people who exercise a lot consume a lot of water and should drink more water. Warm water is the best drink. Experts say that from a health point of view, boiled water is the best drink. Does not contain calories, and can be directly absorbed and utilized by the human body without digestion. It is generally recommended to drink warm water below 30 degrees Celsius, which will not stimulate the peristalsis of the gastrointestinal tract too much and will not easily cause vasoconstriction. Sugary drinks will slow down the absorption rate of water in gastrointestinal tract, and long-term consumption of sugary drinks will have a certain adverse effect on human metabolism. Dr. He said that although sugary drinks such as orange juice and cola taste good, they should not be drunk in excess. The daily intake should be controlled at about one cup, and the maximum intake should not exceed 200 ml. For diabetics and obese people, it is best not to drink such drinks. Bottled water such as pure water and mineral water is favored by modern people because it is convenient to drink, but Dr. He reminded that when drinking these waters, it is necessary to ensure their sanitary conditions, and it is best to drink a bucket of water within one month. People should not use pure water as their main drinking water. Because water is one of the six nutrients in human body, it contains many minerals and trace elements beneficial to human body, but the content of these substances in pure water is greatly reduced. If people's diet and nutritional structure are unbalanced, it will easily lead to nutritional imbalance. Some people worry that the hardness of tap water is not good for health, but Dr. He said that the hardness of water basically has no effect on human health, and now tap water in China meets the drinking water standard, so it is safe to drink boiled tap water. Both tea and coffee have a refreshing effect, but Dr. He reminded people that it is advisable to drink light tea when drinking tea, and avoid drinking coffee. Caffeine can affect the absorption of calcium. Don't gulp when drinking water. Many people often think of drinking water when they are thirsty, and they often gulp it down. This is also wrong. Drinking water too fast and too hard is bound to swallow a lot of air together, which is easy to cause hiccups or bloating. Therefore, it is best to put water in your mouth first, and then drink it slowly, especially for people with weak stomach and intestines. As for the time to drink water, experts say, don't drink water when you are thirsty. Drink water in moderation between meals, preferably once every hour. People can also judge whether they need to drink water according to the color of urine. Generally speaking, human urine is light yellow. If the color is too light, maybe they drink too much water. If the color is too dark, it means that they need to add more water. Drinking less before going to bed and drinking more before going to bed is also the principle of drinking water correctly, because drinking too much before going to bed will cause eyelid edema, and running to the toilet in a nightclub will make the quality of sleep not high. After a night's sleep, the body loses about 450 ml of water, which needs to be replenished in time in the morning. Therefore, drinking a glass of water on an empty stomach after getting up in the morning is good for blood circulation, and it can also promote brain lucidity and make the thinking of this day clear and agile.
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