为什么喝酒有的人会脸红（Why do you drink and some people blush）.doc

为什么喝酒有的人会脸红（Why do you drink and some people blush） Why do people drink and some people blush? Let me start with the reason for blushing. West ~ ~ ~! A lot of people think its caused by alcohol, otherwise its caused by acetaldehyde. Acetaldehyde has the function of allowing telangiectasia, and the expansion of the facial capillaries is the cause of blushing. So, people who drink blush mean they can quickly turn ethanol into acetaldehyde, that is, they have an efficient alcohol dehydrogenase. However, we must not forget that there is an enzyme called aldehyde dehydrogenase. Drinking red face is only the former enzyme, no one enzyme, so the rapid accumulation of acetaldehyde in vivo and can not metabolize, so long time red face. But we have experience, when the red legs will gradually go 1-2 hours, it is the liver P450 in slowly acetaldehyde into acetic acid, and then enter the TCA cycle is metabolism. So what happens to people who drink a lot? These people tend to drink more and more white face, suddenly to a point not dead drunk. Thats because people with such high activity do not have both alcohol dehydrogenase and aldehyde dehydrogenase, which are slowly oxidized by P450 in the liver (because P450 is a relatively low group of oxidases). So, why does a person like this feel like a drinker? At that time, because they rely on body fluids to dilute alcohol, the bigger they feel, the more they can drink. Under normal circumstances, the alcohol concentration is more than 0.1% they will coma, for most Southerners is half a catty liquor, while those in the north because of the large size, you can drink 8 to two to a pound of white wine. But no matter what, if he is face to drink more white, preferably not more than half a catty, or there is the possibility of acute alcoholism. What happens when a person has a high activity of alcohol dehydrogenase and a high activity of acetaldehyde dehydrogenase? He / she is the legendary wine basket. How to judge whether he / she is not