Thirst is a sign of slight loss of water in the body. The average daily water consumption of a normal person is 2000-2500 ml. 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, the daily supplement of water is about 3000ml in order to meet the needs of the human body. An average adult urinates about 1.5 liters a day, and loses about 0.5 to 1 liter of water through breathing and perspiration. In order to ensure health, we should drink at least 2 to 2.5 liters of water every day.

Ice water? pure water? fruit juice? warm water? How should we drink?
When it comes to ice water, almost no one dislikes it. Especially in the hot summer days, many people will buy cold drinks, ice water or cold beer to relieve heat and thirst. Drinking it in one sip is particularly refreshing. However, drinking a lot of ice water can easily cause gastric mucosal vasoconstriction, affect digestion, accelerate gastrointestinal peristalsis, and even cause intestinal cramps, causing abdominal pain and diarrhea.
What about pure water? Purified water removes harmful substances such as suspended bacteria in the water during the processing process, and at the same time removes the minerals needed by the human body contained in the water. This is the biggest difference between it and natural tap water. Pure water is not suitable for everyone.
Sugary beverages such as fruit juices and sodas have good taste, but they slow down the absorption of water in the gastrointestinal tract. Drinking large amounts of beverages for a long time will have a certain adverse effect on the body's metabolism.
On the contrary, warm boiled water contains no calories and can be directly absorbed and utilized by the human body without digestion. The temperature is suitable, and it will not excessively stimulate the peristalsis of the gastrointestinal tract, and it is not easy to cause vasoconstriction. Warm boiled water is the natural state of water that has been purified and boiled. The microorganisms in the water have been killed at high temperatures, and the calcium and magnesium retained in the water are very beneficial to health.