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Cold boiled water overnight should not be drunk again, mainly because it is easy to contaminate, and if the intestinal function is not good, diarrhea and other phenomena may occur. The production of light salt water only requires boiled water and salt, and does not require overnight water.
Hu Wengang agrees with the claim that water has a shelf life, but he feels that "16 hours" has no scientific basis.
He said that water has a shelf life, in fact, it is easy to understand, drinking raw water is easy to diarrhea, because there will be various microorganisms and bacteria in the water, and after high temperature boiling, these microorganisms and bacteria cannot survive and are killed.
However, in the process of boiling water to cool down, the temperature is just right for microorganisms and bacteria to multiply, and the longer it takes time, the more it will multiply, just like a basin of water outside, it will deteriorate after a long time.
How long it will take to spoil and it will not be suitable for drinking, in fact, there is no fixed time, because it is also affected by the objective environment. For example, in summer, the temperature exceeds 30 degrees Celsius, the air humidity is high, and the bacteria multiply quickly, which is very easy to be contaminated and cause diarrhea.
Therefore, it is best not to drink overnight water in summer, and it is best to put overnight water in winter in a covered cup, and then mix boiling water with warm water the next morning.
Wu Zhigang suggested: "The time of cool white boiling should not be too long, and the boiling water boiled on the same day is best drunk on the same day." ”
"Morning salt and evening honey" is a health preservation method that has been widely spread from ancient times to the present. But it's not every day, it's best to drink it once a week. But also be careful when drinking salt water and honey:
Salt contains a lot of sodium, which can cause an increase in blood pressure. Therefore, the concentration of salt water should be low, and it is best not to exceed grams of salt in 100 ml of water. Patients with acute nephritis, cirrhosis ascites, and edema are best replaced with plain water to avoid aggravating the burden on the kidneys and heart.
Honey has a high sugar content and should not be taken by diabetics. In addition, salt water and honey must be drunk together, as they have complementary effects. Honey is high in potassium, which helps to flush out excess sodium from the body.
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I have been drinking like this, because the sun and the moon have the saying of yin and yang, and the cool white open overnight absorbs the yin and yang breath between heaven and earth! It can clear the stool and detoxify the intestines for a long time, in short, it is beneficial and harmless to the body!
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It should be half overnight boiling water and half freshly boiled water plus salt, well, yes.
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Undoubtedly, it is clear water with boiling water = warm water It should be no problem to drink it The problem is how big the container is It is very salty to add two spoonfuls of salt!
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Patients with heart disease, kidney disease, and high blood pressure should not drink salt water.