People consume at least 2500ml of water every day, and the food we eat every day already contains a lot of water, such as 90% water in vegetables, 80% water in fruits and 70% water in meat and fish. After deducting these, drinking 1500ml water a day is enough.
People can't drink water because of thirst. Thirst is a signal from the central nervous system to replenish water when the human body loses its water balance and cells are dehydrated to a certain extent. Drinking water only when you are thirsty is equivalent to re-irrigating cracked soil, which is not conducive to your health. Adults should drink water at least six times a day.
Drinking water on an empty stomach is the most effective, and water will circulate directly from the digestive tract and be absorbed by the body. At the same time, drinking more water can eliminate sweat and urinate more, which can not only lower the body temperature, but also eliminate toxic substances in the blood. Usually we lose 300 ~ 400 ml of water through breathing and skin evaporation every night. Therefore, when you wake up in the morning, drinking a large glass of water first can not only replenish the water lost by body metabolism and wash the empty stomach, but also effectively dilute blood, reduce blood viscosity and prevent the occurrence of cardiovascular and cerebrovascular diseases.
2. What water is the best to quench your thirst?
Now, there are so many drinks on the market that people are dazzled. Compared with drinks, pure boiled water is the most thirst quenching. At the same time, boiled water is also rich in a variety of minerals, which can regulate the balance of human body fluids. In contrast, pure distilled water should be reduced as much as possible.
Fruit and vegetable juices are nutritious and can replenish water, so you can drink more. Because all kinds of functional drinks contain a lot of additives, you should be careful when choosing them. Some additives even increase people's metabolic burden. Children should try to drink less carbonated drinks.
In addition, strong tea and salt water cannot replace drinking water. Because strong tea has diuretic effect, it will affect the water balance of human body and cause cell dehydration. Because the sodium content of cells is very low, after people drink salt water on an empty stomach, salt water can enter blood and tissues, but it can't enter cells. Excessive salt will dehydrate cells.
3. How to drink water in summer
It is very hot in summer, so people especially need to drink more water. Pay attention to the temperature of water when replenishing water. Too cold and too hot water will irritate the gastric mucosa. In summer, the body temperature is usually high, and a large number of cold drinks are easy to cause digestive system diseases, because at this time, due to the accelerated blood circulation, the gastrointestinal tract is relatively ischemic. Don't drink drinks below 5 degrees Celsius. It is best to drink cold boiled water of about 10 degrees Celsius to cool down and quench your thirst.
You should have a drink of water after summer exercise. In this way, people's body fluids will not suddenly become weak because of a large amount of water supplementation.