Furthermore, purified water not only removes harmful impurities in "normal water", but also removes trace elements and minerals beneficial to human body. According to the survey in Shanghai and Tianjin, some families who drink purified water for a long time, especially children before and after school age, generally have unexplained fatigue, hair loss, muscle trembling and other symptoms. Medical experts believe that this is caused by drinking pure water for a long time-children need to take in trace elements such as potassium and calcium from drinking water, and pure water is just lacking.
Moreover, because pure water has strong solubility, it will dissolve some trace elements in the human body and excrete them to the outside world, causing certain harm. Therefore, for children, the elderly and some patients, pure water is not suitable as the only drinking water for a long time.
In addition, because pure water does not contain minerals and has no protective effect, as long as it is polluted by any harmful substances, the effects of these harmful substances will be amplified. This kind of pollution is common in inferior pure water.
Finally, pure water will make human cells choose harmful metals, such as lead, which will lead to the dysfunction of protein or enzymes. Dr. John Sorensen is a theoretical authority and medical chemist of mineral metabolism in the United States. He said that the ratio of macro elements to trace elements in metabolism is easily affected by the quantity of macro elements in water-if the required macro elements are met, the trace elements will not be absorbed or rarely absorbed, but will be excreted. For example, if the content of calcium and magnesium in water is high and the content of lead is low, the human body will choose calcium and magnesium to excrete lead; But if the content of calcium and magnesium is also low, cells will choose to absorb lead.