Water is an indispensable nutrient for human beings every day. Experiments have proved that a person can live for dozens of days without eating and drinking water, but not for a few days without drinking water. It can be seen that water is very important to human health. Healthy adults need about 2500 ml of water every day, so to stay healthy, we must pay attention to intake enough water every day. At the same time, drinking water must be scientific and hygienic.
(1) Don't drink polluted raw water: 80% of human infectious diseases are related to water or water source pollution. Diseases such as typhoid fever, cholera, dysentery and infectious hepatitis can all be caused by drinking polluted water. Polluted water can also lead to the spread of parasitic diseases and endemic diseases. Therefore, drinking water should meet the hygiene requirements. Drink boiled water instead of raw water.
(2) Drink water with proper hardness: the hardness of water refers to the content of salts dissolved in water. If there are many calcium and magnesium salts in water, the hardness of water will be high, and vice versa. Excellent water quality affects the digestion and absorption function of gastrointestinal tract, causing gastrointestinal dysfunction, indigestion and diarrhea. China stipulates that the total hardness of water should not exceed 25 degrees. It is suggested that the suitable hardness of general drinking water is 10-20 degrees. The best way to treat hard water is to boil, and after boiling, it can reach the appropriate hardness.
(3) Drink plenty of water. The temperature is high in summer, and people are prone to sweating and thirst. But 1 time should be moderate, and don't drink a lot of water. Even if the letter is thirsty, 1 time should not drink more water. This is because the blood volume will increase after drinking water is absorbed into the blood, and a large amount of water entering the blood circulation will increase the burden on the heart. Pay attention to proper drinking several times.
(4) Drink plenty of water in time. Drinking a glass of water after getting up in the morning can dredge the stomach, reduce blood concentration and prevent thrombosis. It is not advisable to drink plenty of water immediately after strenuous exercise or labor sweating. Digestive juice is digesting food after a meal. At this time, if you drink a lot of water, it will dilute gastric juice and gastric acid and affect digestive function.
1. You can drink water before going to bed at night.
2. Drink plenty of water in summer and winter.
Be sure to drink water when you have a fever. In addition, when flying, the stewardess asks you if you want water, so you'd better nod.
4. After sweating a lot, you can add some salt to the drinking water to maintain the normal salt content in the body.
Although tap water has been disinfected and filtered, it still contains some bacteria. Swimming overnight for a long time, the temperature is about 37℃, which is very suitable for the growth and reproduction of bacteria, and the extremely low nitrite content in water is greatly increased. This kind of water with high nitrite content will directly affect the oxygen-carrying function of blood after being drunk by people, and will cause hypoxia and suffocation in severe cases. Nitrite has another more dangerous potential toxicity: it can be materialized with amines in human stomach to synthesize nitrosamines. Nitrosamines are recognized as strong carcinogens. So you can't drink water overnight.
References:
/blog/log/showlog.jspe？ log _ id = 1 1467 16905426 120。 Site id=6930