I believe that many people in the summer have had such an experience: dry mouth when drinking a cup of cold water, then will feel very cool, but not long after the feeling of thirst; on the contrary, if you drink a cup of relatively hot water, although the temporary will not be cool refreshing, but after a while will feel very comfortable. Summer is so hot, according to theory, drink cold water should be more helpful to cool down, how instead of drinking hot water is more comfortable? Want to figure out the cause of this problem, we have to understand the composition of water. Friends who have studied chemistry certainly know that water is composed of countless water molecules, and each water molecule has two hydrogen atoms and an oxygen atom combined. Research has found that in the natural state, these water molecules have obvious electrode, and very unstable, they will be in the water constantly free and collision, and then combined together to form a variety of different sizes of the bond. The appearance of these combinations makes the structure of the water also increased, and become difficult to be absorbed by the body of large molecules of water. If we do not want to drink this kind of bad absorption of water, the easiest way is to heat it, in the process of heating, the free formation of those due to the collision of the bond will be in the high temperature under the influence of the splitting, back to a single molecule. According to the Brownian motion (single molecule movement) reflected in the phenomenon, the single molecule in the water activity is significantly stronger than the molecular binding body, therefore, by the single molecule of water can be quickly absorbed by the cells in our body after being drunk, so that because of sweating and empty body to get timely water supplementation, and these small molecule groups of water supplementation, in turn, will accelerate the physical activity of the cells, promote the human body’s Metabolic rate. Another factor to start with our stomach and intestines, due to thermal expansion and contraction, cold water in the stomach and intestines will force the gastrointestinal mucosa and vascular contraction, and thus can not be fully absorbed in a timely manner; and heated water will allow the gastrointestinal mucosa and blood vessels are in a state of diastole, the water is more likely to be accepted by our body. At the same time, in the summer, drink hotter water will promote the body sweating, sweat out of the body, the heart naturally feel comfortable, must be “Camel Xiangzi” in the hero is because of this reason to sell hard labor after going to drink hot tea.