1) Pure water not only removes all substances harmful to human body, but also removes many "essential trace elements" which are very important to human health. The amount of these elements needed by human body is extremely small, which can be satisfied by normal diet every day. Now, this essential trace element, which can be obtained from normal drinking water, is removed by drinking pure water. This can not meet the normal needs of the human body. In the long run, it will cause irreparable harm to health. This kind of injury is chronic, subtle and irreversible, and it is also harmful to future generations.
Among them, zinc, magnesium and iodine are the most influential elements. Although the content of these elements in water is very small, they are scarce in food, and it is even worse to remove these trace elements from water now. These three elements are directly related to reproductive development and intellectual development, and their deficiency will affect the development of nervous system and even offspring.
2) In a normal diet, there are many inorganic salts that can be satisfied. For example, there are 30 kinds of inorganic salts needed by human body in tap water. Now, if this part of the water is removed, the human body will not be able to supplement the required amount of inorganic salts. After a long time, it will cause unbalanced nutrition, which will affect people's health and seriously cause diseases.
3) Pure water is impure. The preparation of pure water is very complicated. Since it is a high-tech achievement, it is of course high in technology. Not everyone can produce it. These ion exchangers and membrane filters need frequent technical treatment and cleaning, which is called the regeneration technology of ion exchangers and membrane filters. However, most water purification plants do not master this regeneration technology. As a result, a large number of bacteria and dirt are enriched in the exchangers and filters. The longer they are used, the more bacteria and dirt they accumulate. Finally, the content of water, bacteria and dirt filtered from here is much higher than that of tap water. In other words, this filter has become a pollution source. Therefore, according to the data released by relevant testing departments, the qualified rate of testing pure water every year is not high. Many unqualified "pure water" are sold all over the street, so people drink it as pure water, which is much more harmful than tap water (because everyone knows that tap water is boiled before drinking).
4) After entering the human body, pure water has strong solubility because it does not contain all kinds of positive and negative ions. It can not only dissolve all kinds of harmful wastes and harmful trace elements, but also excrete them. At the same time, it can dissolve all kinds of essential trace elements that the human body needs very much and excrete them.
5) After the purified water is treated by the water purifier, the molecular structure will be rearranged, making the molecular structure of purified water extremely series and linear. This kind of water molecule is not easy to pass through the cell membrane, which will lead to the loss of beneficial life-related elements in the body to the outside world. Some sensitive people feel that the more they drink, the more thirsty they are and the more they want to drink. Drinking pure water for a long time makes you feel weak. This has prominent side effects on the growing teenagers. To this end, Shanghai clearly stipulates that primary and secondary school students are restricted from drinking pure water.