The water demand of human body is influenced by many factors, such as age, physical activity and environmental temperature, so it changes greatly. In general, it is recommended that adults living in mild climate and with light physical activity drink 1500ml ~ 1700ml (about 7-8 cups) of water every day.
People who work or exercise in a high temperature environment have a high level of physical activity and sweat a lot. According to the individual's physical load and thermal stress, the daily water demand needs to be appropriately increased.
Extended data:
Methods of rational drinking water
First, a small number of times: about 200mL each time (1 cup). When the water in the body reaches balance, it can ensure that the digestive juice is fully secreted during meals, stimulate appetite and help digestion. Drinking plenty of water at one time will increase the burden of gastrointestinal tract and dilute gastric juice, which will not only reduce the bactericidal effect of gastric acid, but also hinder the digestion of food.
Second, timely supplement: the drinking time should be distributed at any time of the day, and you can drink it at any time. Never drink water when you feel thirsty. After getting up in the morning, you can drink a glass of water on an empty stomach, which can reduce the blood viscosity and increase the circulating blood volume.
You can also drink a glass of water before going to bed, which is helpful to prevent the blood viscosity from increasing at night. The water loss in the body is accelerated during exercise, and if it is not replenished in time, it will cause water shortage. When the intensity of exercise is high, we should pay attention to the supplement of water and minerals during exercise, and replenish enough drinking water in time as needed after exercise.
Third, choose boiled water: cheap, safe and hygienic is the biggest advantage of boiled water, and compared with sweet drinks, boiled water can also avoid the risk of obesity caused by energy and the risk of dental caries and diabetes caused by too much sugar.
People's Health Network-Scientific drinking water is not as simple as "eight cups"