Seeing the weather getting hot, people like to sweat. Their first reaction is to be thirsty and want to drink water. In the early years, people of the same generation as the food mother-in-law remember that when you were young, there was a pot of "cool and white" on every table. When you ran home with sweat, the first thing adults reminded you was to "drink water, drink water quickly!" Gudong, Gudong, a drink that is called a thirst quenching, happy. At that time, we didn't have so many drinks and refrigerators as we do now, but the memory happiness index of drinking cold water is not less than now
Boiled water is easy to replenish water through cell membrane Preferred drinking water
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Stop talking about us. Do you know this Shuaiguo?
China's famous basketball player, Aaron Guo! He told Grandma Shi: "I remember when I was a child, there was always a large glass of water on the table at home. Every day when I came home from school, I would pour out a glass of water to drink. In retrospect, I always think that there was something in that cup that could not be finished and really quench my thirst. It turned out that it was my mother's warm memory forever! Now, I still keep the habit of drinking a bottle of water before the game."
If you think that the feeling between me and Guo Dashaiguo is just a feeling of cool, then you are totally wrong. Professor Ma Guansheng, School of Public Health, Peking University, explained:“ Boiled water is most likely to play the role of water supplement through the cell membrane. When athletes drink water during sports, boiled water is the first choice. The osmotic pressure of extracellular fluid increases when drinking water is insufficient or too much, and the hypothalamic 'osmoreceptor' produces thirst, reminding the body to take the initiative to drink water to supplement water. "
"When water loss accounts for 1% of body weight, the human body will be thirsty, tired, irritable, anorexia, low urine and fast pulse. When water loss reaches more than 20%, it may cause death. Drinking plain water is recommended for daily drinking." Ma stressed.
When did you say that? Will knowledge be updated? Just last week, on June 13, the second healthy drinking water (cooked water) industry development forum was held in the China Science and Technology Hall. The theme of this forum is "inheriting the culture of cooked water, cold and white drinking, and advocating healthy drinking habits". Several experts were gathered to discuss hot topics of healthy drinking.
Men need water more than women
Women drinking water can reduce weight
Who else do you ask? Teacher Fan Zhihong, a famous nutrition expert and associate professor of the School of Food and Nutrition, China Agricultural University! Her opinion makes you see, "A Dream of Red Mansions" says that men are made of mud and women are made of water. In fact, men need more water than women. Generally speaking, adult women need to drink 1500 ml of water every day, while men need 1700 ml.
If the human body loses more than 1.39% water, it will bring significant cognitive damage. Compared with less than 1 liter of water, women who drink more than 1 liter a day can lose 2 kilograms of weight if they persist for one year. Children, pregnant women and lactating mothers, the elderly, people who eat too much sugar, fat and salt, and people who exercise should add more water. However, drinking too much water will also lead to the loss of minerals and water-soluble vitamins, so you should drink appropriate water according to your own situation. So, what kind of water is good to drink? According to the requirements of the Dietary Guidelines for Chinese Residents, of course, it is boiled water and light tea.
Reasons for unqualified packaged drinking water
Mainly caused by improper control of ozone use
Chen Yayan, a researcher from the Institute of Environment, Health and Safety of the Chinese Center for Disease Control and Prevention, told us that if the water of life is not safe, it will lead to a variety of diseases. Mainly diarrhea, hepatitis, cholera, etc. The bleaching powder invented in 1820 was a response to a cholera epidemic in London, England. That's because of the pathogenic bacteria spread through drinking water. The effect is very good after adding bleaching powder. Later, many countries used this (chemical disinfection) chlorine disinfection for water treatment processes. In addition, physical disinfection, ultraviolet disinfection, heating disinfection and bacteriostatic technology disinfection are also widely used in the world.
Ma Jinya, secretary-general of the Healthy Drinking Water Professional Committee of the Chinese National Health Association, appealed that according to the sampling inspection results published on its official website by the Healthy Drinking Water Professional Committee of the Chinese National Health Association, which combed the food and drug supervision, quality supervision, market supervision and other important functional departments, the packaged drinking water and food safety in China is stable and controllable, but the problem of unqualified products cannot be ignored.
According to the statistics, the unqualified rate of packaged drinking water products was 8.72% between 2016 and 2017, and the prominent problems were mainly reflected in the indicators of bromate exceeding the standard and Pseudomonas aeruginosa detection, The main reason is the improper control of ozone use As a result, it also reflects that China's packaged drinking water and food safety standards are very strict.
Some experts also suggested that“ Commercial packaged drinking water is generally disinfected by adding chemical reagents such as ozone. When ozone is overused, when a certain amount of bromide is contained in the water, the carcinogen bromate in the water will exceed the standard. When ozone disinfection is not sufficient, because the Pseudomonas aeruginosa commonly contained in the water has certain oxidation resistance and is insensitive to ozone, it is possible to detect pathogenic bacteria. "
At the beginning of 2017, Jinmailang Beverage Co., Ltd., the first company to launch cooked water and cold boiled water products, applied to the Chinese National Health Association for the development of standards for "cooked water" groups. In August of the same year, the Association officially launched the group standard of "Packaged Drinking Water for Cooked Water", which is defined as packaged drinking water processed by ultrafiltration, nanofiltration, reverse osmosis and other membrane filtration technologies only through no less than 100 physical heating sterilization processes, and refined from other categories of packaged drinking water. Experts believe that the use of pure physical boiling technology to obtain cold, white and boiled packaged drinking water for cooked water products is different from bottled raw water, such as mineral water and purified water, which are sterilized by adding ozone chemical reagents and have potential bromate generation hazards. The "cooked water" innovative category is refined from packaged drinking water, bringing new benefits to the healthy life of the people.
