日本的美容专家研究发现,经常用凉开水洗涤皮肤,能够使皮肤细胞保持一定的水分而显得柔软、细腻、有光泽并富有弹性。凉开水是一种含空气很少的“去气水”。研究表明,开水自然冷却到20-25℃,溶解在其中的气体比煮沸前少2/1。水的性质也发生了相应的变化,内聚力增大,分子之间更加紧密。这些物质与生物细胞内的水十分接近,有很大的“亲和 Japan’s beauty experts study found that often wash the skin with cold water, can make the skin cells maintain a certain moisture and appear soft, delicate, shiny and elastic. Cold water is a kind of air with very little ”de-gas water ". Studies have shown that boiled water is naturally cooled to 20-25 ° C and less dissolved gas is 2/1 less than before boiling. The nature of water has also undergone a corresponding change, cohesion increases, more closely between the molecules. These substances are very close to the water in biological cells, have a great affinity