According to Northeast News Network, if you use hard water to wash clothes, you need to add a lot of softener to the water. If washed with hard water, sanitary ware is easy to scale; If you take a bath with hard water, your skin will be dry and tight, and your hair will be yellow and dull. If hard water is used in electric water heaters and humidifiers, it is easy to scale in electrical appliances, thus increasing energy consumption and shortening service life.
People who are not used to hard water occasionally drink hard water, which will cause gastrointestinal dysfunction, the so-called "acclimatization"; Making tea with hard water will change the color, aroma and taste of tea and greatly weaken its drinking quality; Besides, according to Nanfang Daily, there are many minerals in "hard water" such as deep well water and mountain spring water, and drinking too much of this water may cause kidney calculi.
However, this does not mean that hard water is only harmful to human body. According to Xinmin Evening News, water-soluble calcium and magnesium ions are more easily absorbed by human body than calcium tablets. In addition, there are foreign controlled experiments that show that the incidence of cardiovascular diseases is 25%-30% lower for people who drink hard water with moderate hardness than for people who often drink soft water.
/iknow-pic.cdn.bcebos.com/b64543a98226cffc13f96f1fb7014a90f703a48 "target =" _ blank "title =" "class =" ikqb. /iknow-pic . cdn . BCE Bos . com/b 64543 a 98226 cffc 13f 96 f 1fb 70 14a 90 f 703 ea 48？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ N1/2017/016/c404177-29024788 The original water is impure "> People's Network-Ever heard of ultra-hard water? It turns out that water is not pure.