有不少人认为冬季寒冷,人体出汗少,可以少饮水或不饮水,这种认识是错误的。冬天虽然人体出汗少,但组织液通过皮肤蒸发也可失去不少水分,一个成年人一天要失去约600毫升水,这种水蒸发是在不知不觉中进行的,故也称“无感蒸发”。人在呼吸时,也会失水,呼吸道在吸进氧气排出二氧化碳时, Many people think that the cold in winter, the body less sweat, you can drink less water or no water, this understanding is wrong. Although the human body sweat less in winter, but tissue fluid evaporation through the skin can also lose a lot of water, an adult to lose about 600 ml of water a day, this water evaporation is unknowingly carried out, it is also known as evaporation". When people are breathing, they also lose water. When breathing in oxygen to discharge carbon dioxide,