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水是生命之源,地球上如果没有水,就不会有千差万别的物种,更不会有智力高度发达的人类。水是人体含量最多的组成部分,是构成体液的最基本部分。正常成人体内水的总量大约占体重的61%,占大脑的85%。体液遍布细胞内外,机体的代谢变化都是在体液环境中进行的,而新陈代谢的正常进行要求体液有种种条件保持质和量的相对恒定。不少疾病和症状的发生正是由于体液的含量、分布和组成失常而引起的。水对机体具有广泛的生理功效,如营养和氧的供应、废物和毒物的排泄、体温的调节、关节的润滑等都离不开水。有趣
Water is the source of life. Without water on Earth, there will be no vastly different species, and no more highly intelligent humans. Water is the most abundant part of the body and constitutes the most basic part of body fluids. Normal adult body of water, the total amount of about 61% of body weight, accounting for 85% of the brain. Body fluid throughout the cell, the body’s metabolic changes are carried out in the body fluid environment, and the normal metabolism requires fluid to maintain a variety of conditions and relatively constant quality and quantity. Many diseases and symptoms occur precisely because of body fluid content, distribution and composition disorders caused. Water on the body has a wide range of physiological effects, such as nutrition and oxygen supply, waste and poison excretion, body temperature regulation, joint lubrication are inseparable from the water. interesting