If a person is easily flushed after drinking, most cases are due to the insufficient content of acetaldehyde dehydrogenase in the body, and this part of the body is relatively more damaged by drinking, so it is not recommended to drink alcohol. But alcohol is something that is not recommended for people with high or low enzyme activity in the body, and drinking too much alcohol is a heavy burden on the liver. For people who drink and blush in the end can not drink, we can explain so. The main reason for the blushing is that there is alcohol in the wine, the chemical name is ethanol. 90% of the alcohol or ethanol is eventually metabolized by the liver after drinking. First of all, after alcohol enters the liver, it can be metabolized into acetaldehyde by the enzyme ethanol dehydrogenase, and then acetaldehyde can be metabolized into acetic acid by the enzyme acetaldehyde dehydrogenase, and acetic acid is what we usually call acetic acid. When this alcohol is metabolized into acetic acid, it can be broken down into carbon dioxide and water, and can be excreted well. The activity of acetaldehyde dehydrogenase in the body is different for each person due to genetic differences. If the activity of acetaldehyde dehydrogenase is high, it can quickly metabolize ethanol into acetic acid, and after metabolizing it into acetic acid, it will be turned into carbon dioxide and water and excreted out of the body, so this part of the population will not be prone to blushing. If the acetaldehyde dehydrogenase activity in the human body is low, it cannot be metabolized into acetic acid very well and quickly, and it accumulates more and more, so it is easy to appear like this kind of red face, and even have dizziness, nausea and uncomfortable feeling. You must drink in moderation, know your own amount, and go to the hospital for treatment as soon as alcohol poisoning occurs. In particular, don’t drink too much alcohol blindly, otherwise it will have a lot of bad effects once heavy alcohol poisoning occurs.