? 1. How to drink a glass of water in the morning?
? The health concept of "drinking a glass of water after getting up in the morning" is no stranger to everyone. Experts say it is very necessary to drink a glass of water after getting up in the morning. When sleeping at night, the human body consumes a lot of water through urine, skin and breathing. Drinking water after getting up in the morning will leave your body in a state of water shortage. Drinking water after getting up can replenish the water lost by body metabolism in time. However, there are different opinions about what water to drink. Boiled water, honey water, brackish water, carbonated drinks ... which is the best for your health?
? ? 1, some people cannot drink light salt water.
? Experts told reporters that although many health views believe that drinking a cup of light salt water in the morning is beneficial to health and has the effect of preventing constipation, there is no evidence-based medical data to prove that light salt water can treat constipation. On the contrary, there is clear data that excessive intake of sodium will increase blood pressure and be harmful to the body. In addition, there is no unified definition of "brackish water" at present.
? The concentration of physiological saline is 0.9%, and the taste is very salty. If the concentration is reduced to 0.2%, that is, 1 g salt is added to 500 ml of water, people can accept this taste. However, the World Health Organization recommends that adults consume 5 grams of salt every day. In this way, if they drink a cup of "light salt water", they will eat 1/5 salt a day and eat it again that day. Therefore, considering the control of salt intake, it is not recommended to drink light salt water, especially for patients with hypertension and kidney disease.
? 2. Boiling water
? Compared with the above drinks, boiled water is the most common and convenient drink in life. Hong Zhongxin said that boiled water has no protein, carbohydrates, fat and any calories, so it is the water with the least "burden". It can be absorbed by human body without digestion, so that blood can be diluted rapidly and blood circulation can be promoted. Drinking a cup of boiled water in the morning is the best choice, which can not only supplement the water needed by human metabolism, but also reduce the blood viscosity and facilitate urine excretion.
? Second, can I drink water overnight?
? Recently, there is a saying on the Internet that "overnight water" cannot be drunk. Actually, drinking water need not be too dogmatic. "You can't drink water overnight" has no scientific reason. Everyone knows that overnight tea can't be drunk, which is mainly related to microbial pollution. Overnight tea is a medium for microbial reproduction. After the tea leaves are left overnight, the nitrite content will increase greatly. However, even if the tap water is left for a day or two after boiling, the probability of being polluted is very small, so you can safely drink it.
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