Is it scientific to drink eight glasses of water a day? In fact, eight glasses of water a day is a standard, but depending on the size of the cup, it is not necessary to drink eight cups, or eight cups is enough, but it depends on the specific situation. The concept of 8 glasses of water, whether it is the amount of drinking or the number of times of drinking, is closer to the state of healthy drinking water.
Usually, the time for us to drink healthy water is to get up in the morning and drink two glasses of water, each of which is about 200ml. * * * Drink twice, then drink three glasses of water 1-2 hours after breakfast and lunch, and drink less water at night to make your body have enough water, which will not affect your sleep at night and will not increase the burden on your kidneys.
How many milliliters does eight glasses of water drink a day? It is said that you should drink eight glasses of water a day, at least 1500~ 1700 ml a day, which is about 7~8 cups. Under the condition of high temperature or strong physical activity, it should be increased appropriately. Insufficient or excessive drinking water will bring harm to health. The daily water consumption of the elderly over 60 years old is1600 ml; Men are advised to drink 2200 ~ 2300 ml of water every day, which is 10% ~ 15% more than women. Obese people should increase 10%, and lean people should decrease 10%. In addition, drink plenty of water when you have a lot of exercise and sweat.
So we have soup on weekdays. Is the water in the soup in our eight glasses of water? Not really. The water in the diet accounts for about 1/3 of the total. The total water consumption in a day includes soup and porridge. Therefore, normal adults need to consume about 2700-3000ml of water every day.
How to drink water correctly, if the way is wrong, it will also bring harm to the body. If you drink a lot of water at one time, a lot of water will suddenly dilute the blood, leading to an imbalance between sodium and potassium, thus forming hyponatremia or hypokalemia. If you drink a lot of water, it will increase the burden on the kidneys and bring damage to the kidneys. Therefore, the best way to drink water should be to drink it several times, sip it slowly, and the best drinking time can be about 200ml.
In addition, pay attention to the water temperature of drinking water. It is best to keep the water temperature of drinking water at 20-50 degrees. The density/tension and biological activity of water at this temperature are closest to human blood and cell fluid, so as to better replenish water for blood and cell fluid. In addition, for some patients with cardiovascular and cerebrovascular diseases, although drinking water at night is not recommended, especially before going to bed, it is recommended to prepare a glass of water in advance and replenish it at midnight to avoid blood concentration and prevent the onset of cardiovascular and cerebrovascular diseases.