People should drink 2000-2500 ml of water a day. Drinking water should also be done scientifically. You cannot wait for thirst before drinking water. Thirst is a manifestation of slight water loss in the body. The average daily water consumption of normal people is 2000-2500 ml, and the oxidation of substances in the body can produce 300 ml of water. Therefore, 2200 ml of water should be added every day, including the water content in the diet. In summer, a daily supplement of about 3,000 ml of water is required to meet the needs of the human body. Drink water evenly throughout the day and night, and do not drink too much water continuously in a single hour. The time when you should drink water every day is: ※The best time to drink water ★After getting up in the morning Your body may be slightly dehydrated when you get up in the morning because it has not been replenished for a while. It’s best to drink a glass of water first to allow your body to start functioning again. Secondly, replenish the lost water in the body at regular intervals. ★After exercise Although we are not athletes and do not exercise that much, we should drink water no matter what exercise we do or even after cleaning the room. ★Air-conditioned environment When working in an air-conditioned environment, you need to replenish water. ★Drinking to lose weight When going on a diet to lose weight, you especially need to drink water. "Drinking water makes people fat" is a wrong concept. ★Fever and cold When you have a fever or cold, be sure to drink water to replenish the water lost due to rising body temperature. Water is the source of life, and all life activities of the human body are inseparable from water. However, many people’s understanding of drinking water is limited to quenching thirst. In fact, drinking water is also a science. Drinking water correctly is very important to maintain people's health. Some people should drink more water, while others should drink less. So how much water should we drink every day? Dr. Li Baihua, director of the Nutrition Department of Peking University Third Hospital, told reporters that generally speaking, the amount of water a person drinks every day must at least be balanced with the water consumption in the body. The amount of urine excreted by the human body in a day is about 1500 ml, plus the water evaporated from feces, breathing or skin, the total water consumption is about 2500 ml, and the human body can neutralize it from food every day. The amount of water added to the body's metabolism is only about 1000 ml, so a normal person needs to drink at least 1500 ml of water every day, which is about 8 cups. Typically how much water each person needs to drink will change based on activity level, environment, and even weather. Drinking too much water for normal people will not have much impact on health, but it may cause increased urination and cause inconvenience in life. However, for some special groups, special attention must be paid to the amount of water they drink. 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, which can easily lead to If the condition worsens, these people should take specific advice from their doctor on how much water they should drink depending on their condition. For patients with diseases such as heat stroke, cystitis, constipation and dry skin, drinking more water can have a certain effect on alleviating the condition. In addition, people should drink more water when they have a cold or fever, because rising body temperature will cause water loss. Drinking more water can help the body dissipate heat and help the patient recover. Pregnant women and people who exercise a lot consume more water and should drink more water. Boiled water is the best drink. Nowadays, there are various pure water, mineral water and beverages on the market with various names, and the advertisements are even more tempting. So what should people choose to drink? In fact, from a health point of view, boiled water is the best drink. It contains no 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 irritate the gastrointestinal tract too much. Peristalsis, difficult to cause vasoconstriction. Sugary drinks will slow down the absorption of water in the gastrointestinal tract. Drinking large amounts of drinks for a long time will have certain adverse effects on the body's metabolism. Dr. Li Baihua told reporters that although sugary drinks such as orange juice and cola taste good, they should not be consumed in large quantities. The daily intake should be controlled at about one cup and no more than 200 ml at most. For diabetics and obese people, , it is best not to drink drinks. Bottled water such as purified water and mineral water is favored by modern people because of its convenience. However, Dr. Li Baihua reminded that hygienic conditions must be ensured when drinking this water. It is best to drink a barrel of water within a month, and people do not Purified water should be used as the main drinking water. Because water is one of the six major nutrients for the human body, water contains a variety of minerals and trace elements that are beneficial to the human body, and the content of these substances in pure water is greatly reduced. If the nutritional structure of people's diet is unbalanced, it is easy to Lead to malnutrition. Some people worry that too hard tap water will be harmful to health, but Dr. Li Baihua said that water hardness has basically no impact on human health, and now domestic tap water meets the drinking water standards, and drinking boiled tap water is safe. . Tea and coffee have a refreshing effect, but Dr. Li reminds people that they should drink light tea and avoid excessive coffee, because caffeine will affect the absorption of calcium. Some people are addicted to coffee and drink three or four cups a day. It can easily lead to diseases such as osteoporosis. Drink a glass of water every hour. Many people tend to think of drinking water only when they are thirsty, and often swallow it in large gulps. This approach is also wrong. Drinking water too quickly will swallow a lot of air, which can easily cause hiccups or abdominal distension. Therefore, it is best to hold the water in your mouth first, and then drink it slowly. Especially for people with weak stomachs, drinking water is more important. Drink slowly, one sip at a time. As for the time to drink water, Dr. Li Baihua told reporters that you should not drink water until you are thirsty. You should drink an appropriate amount of water between two meals, preferably one drink every hour.

People can also judge whether they need to drink water based on the color of their urine. Generally speaking, human urine is light yellow. If the color is too light, it may be due to drinking too much water. If the color is darker, it indicates the need for water. Add some more water. Drinking less before going to bed and drinking more after going to bed is also the principle of correct drinking water, because drinking too much water before going to bed will cause swollen eyelids and frequent trips to the toilet in the middle of the night, resulting in poor sleep quality. After a night's sleep, the human 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 beneficial to blood circulation, and can also promote a clear brain, making the day's thinking clear and agile.