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Does drinking boiled water often have benefits for the skin?
Experts from the Asia-Pacific International Functional Water Cooperation Organization suggest: ■ To maintain normal and healthy metabolism, Chinese adults should supplement about 2 liters of water every day, which is about 7-8 glasses of water (including water supplemented from diet). Get into the habit of drinking water regularly, and don't wait until you are thirsty, because the body is short of water at this time. ■ Pay attention to the time and method of drinking water. Drink 1 ~ 2 glasses of water every morning, noon and evening. If you drink slowly and carefully, you will feel a slight sweetness, and the urine is long, the stool is smooth and refreshing. We often say that people can go without food for three days, but not without water for one day. At ordinary times, I have a headache and brain fever and go to the hospital to see a doctor. In the end, besides asking you to take medicine on time, the doctor will definitely tell you to have a good rest and drink more water. This is not only because drugs can only be absorbed by the human body if they are dissolved in water, but also because water itself has the functions of calming, clearing away heat and expelling toxins. Lu You, a poet of the Song Dynasty in China, lived for more than 8 years in turbulence and vagrancy. He once wrote a poem: "There are too many things to return to Dan after nine turns, and you can chase the gods after taking water." In his opinion, drinking water is better than alchemy to live a long and healthy life. From the perspective of drinking water and health, mainstream scientists believe that good drinking water should meet the following requirements: 1. It should be clean and free of pathogenic bacteria, heavy metals and harmful chemicals. 2, should contain the right amount of minerals and trace elements. 3. It should contain fresh and appropriate amount of dissolved oxygen. 4, it should be alkaline, the molecular group of water should be small and the activity should be strong. At present, drinking water on the market can be roughly divided into three categories: 1. Pure drinking water. 2. Healthy drinking water. 3. Functional drinking water. Pure drinking water: very clean, especially suitable for mixing wine, seasoning and drinking. Drinking pure drinking water is a good choice in areas with poor water sources and water quality. We just don't advocate that children and the elderly simply drink pure water. Healthy drinking water: mineral water that meets the standard is good, and tap water after deep processing (such as precision filtration, activated carbon adsorption, ultraviolet sterilization, etc.) and purified water after mineralization and activation can be called healthy drinking water. Functional drinking water: It is a relatively new kind of drinking water. It requires water to be treated physically on the basis of cleanliness, so that the water cluster becomes smaller, the pH value is alkaline, and the redox potential of water is reduced, even negative. Functional drinking water has the functions of anti-fatigue, anti-oxidation and blood lipid regulation. It is commendable that these health care effects are produced without additives (drugs and nutrients). It can be used as general drinking water, and is more suitable for middle-aged and elderly people and target groups (such as busy work, excessive pressure and overnutrition). 1 Experts teach you to distinguish the "constitution" of drinking water ● Pure water: The drinking water passing through the membrane separation and filtration device filters out harmful substances in the water on the one hand, and minerals and trace elements beneficial to the human body on the other. ● Clean water: The drinking water filtered by activated carbon will retain beneficial elements such as minerals while filtering harmful substances, but the filter core must be kept clean and replaced regularly to ensure the "physical" stability of water. ● Mineral water: drinking water collected from underground water flowing through rocks in deep underground and treated to some extent, characterized by containing certain minerals and trace elements, is beneficial to human metabolism. Distinguish between the advantages and disadvantages of mineral water: the trademark is printed with the ion content in the water. Generally, the combination of high calcium and low sodium is the top grade, and the trace elements such as magnesium, potassium and sulfate are also marked as the best. ● Mineral water: Mineral drinks are not mineral water, but minerals are artificially added, which makes it difficult to mix and the nutritional value is unsatisfactory. ● Mountain spring water: Mountain spring water is not mineral water. Because there is no relevant national standard, the "physique" is unstable ● Oxygen-rich water: oxygen-rich water is artificially oxygenated, and the dissolution of oxygen in water is saturated, not the more the better. ● Distilled water: After water is boiled to the boiling point of 1 degrees Celsius, some harmful substances with boiling point less than 1 degrees Celsius will remain while being sterilized at high temperature. For example, carbon tetrachloride with boiling point of 7 degrees Celsius cannot be filtered out. "Safety is not the only criterion. People should pay more attention to whether it is beneficial to human health when choosing long-term drinking water." Niu Xiaoying, executive director of the Professional Committee of Healthy Drinking Water of China Medical Association, believes that "pure water without harmful substances is clean, and drinking it for a long time is not beneficial to human health, although it is safe." It is more important to judge whether the "constitution" of water is healthy or not, whether the hardness of water is weak and alkaline, the contents of macro-elements and trace elements and the size of water molecules. Although experts agree that mineral water is the crown of drinking water, there are many questions surrounding mineral water. For example, "Why does mineral water taste strange" and "Why does it turn red when making tea with mineral water" ... In the face of numerous questions, Professor Zhu Huigang of Fudan University School of Public Health explained that the "physique" of mineral water collected from different water sources is also different. At present, the mineral water standards formulated by the state only restrict the access of mineral water production enterprises, and do not make a more detailed evaluation of the "physique" of different underground water sources. For example, in Japan, in addition to national standards, mineral water also has two indicators: delicious and healthy, which are used to provide convenience for consumers with different tastes. If some mineral water has a flat health index and a high taste index, while others have a very high health index and the taste index has just passed, it may be helpful to guide consumers to drink. Experts put forward seven standards for healthy drinking water. In the first Tianjin Science and Technology Academic Exchange Month in September 23, relevant experts put forward seven standards for healthy drinking water. Does not contain toxic, harmful and odorous substances. ※: Moderate hardness. ※: The mineral content needed by human body is moderate. ※: The pH value is slightly alkaline. ※: The content of dissolved oxygen and carbon dioxide in water is moderate. ※: Water cluster is small. ※: Water has a strong physiological function. ※. Experts suggest that it is best for adults to drink water at least 6 times a day. ☆ Children should drink about 1 ml of water every day. ☆ Don't be too hot when drinking fresh boiled water. Generally, 25℃ to 3℃ is appropriate. ☆ When you have a fever, drinking more boiled water can improve your resistance, eliminate sweat and urinate more. Besides lowering your body temperature, you can also eliminate toxic substances in your blood, so drinking water scientifically will benefit people endlessly. 1 How to drink water is "scientific"? Although everyone can drink water, how to drink water is "scientific"? Drinking water plays an important role in "healthy diet", and the quantity, time and method of drinking water every day are arranged "scientifically" according to the physiological requirements of the human body. This has a lot to do with human health. People usually drink water according to whether they are thirsty or not, which is unreasonable. Because thirst means that the human body's water is out of balance, the human body's cells have been dehydrated to a certain extent, and the central nervous system sends out a signal to supplement water. Drinking water after thirst is equivalent to irrigating the soil after it is cracked, which is not conducive to the growth of plants. It is advisable to drink water on an empty stomach before meals. The average water consumed by the human body every day (through the respiratory tract, urine and skin, etc.) is about 25 ml. In addition to 3 ml of raw water that can be oxidized by material metabolism in the body, at least 22 ml should be supplemented from the diet every day to achieve balance. How should this 22 ml of water be scientifically added to the human body? To put it simply: drink water on an empty stomach before meals, and have soup and water during meals. Drinking water on an empty stomach before meals means drinking a certain amount of water about an hour before breakfast, lunch and dinner. Because the digestion of food is done by the digestive juice of digestive organs. The total amount of digestive juices (saliva, gastric juice, bile, pancreatic juice and intestinal juice) secreted every day is about 8 ml. Drink water on an empty stomach before meals. The water stays in the stomach for only 2 to 3 minutes, and then quickly enters the small intestine and is absorbed into the blood. It can be replenished to the tissues and cells of the whole body in about an hour to supply the water demand in the body. Therefore, drinking water before meals can ensure the secretion of necessary and sufficient digestive juice to promote appetite and help digestion and absorption, while not affecting the physiological water content in tissues and cells. Therefore, it is very important to replenish water before meals. Especially before breakfast, because of sleeping for a long time, the human body loses more water. It is very important to wake up in the morning and drink more water. Drink warm water on an empty stomach. Drink warm water on an empty stomach. You can also use light drinks such as juice, light tea and vegetable juice. Supplementary nutrition such as milk, soybean milk and eggs should not be eaten on an empty stomach, but should be eaten at or after meals. When it is hot and sweaty, you should increase the amount of water you drink; After sweating a lot, you should add some extremely light salt water. Eating and drinking soup can help dissolve food. Strong tea and salt water cannot replace drinking water on an empty stomach, because strong tea has diuretic effect, which affects the water balance of human body and will cause cell dehydration. Salt is sodium chloride. Because the sodium content in cells is very low, when we drink salt water, it can enter the blood and tissues, but it can't enter the cells. When it is too concentrated, it will cause dehydration of cells, which is not good for the human body. On the other hand, why should there be soup and water when eating? Because, drinking a certain amount of soup during meals helps to dissolve food, so that when the stomach peristalsis, the food and gastric juice are stirred for preliminary digestion, and more water is supplied, which is beneficial to the digestion and absorption of food in the small intestine. If proper amount of water is not added before and during meals, body fluids will lose water when gastric juice is secreted in large quantities after meals, which is bound to cause thirst. Drinking water again at this time will dilute the gastric juice and affect digestion, and increase the burden on the heart and kidneys because of drinking too much water.