In many dinner occasions will often encounter a variety of fancy persuasion, the alcohol can not really more practice to be able to increase people. Drinking is easy on the face of people really more practice can do when drinking without blushing? Before answering these questions first we need to understand the metabolic path of alcohol in the human body. Alcohol enters the bloodstream from the digestive tract after drinking, and is mainly metabolized by the liver, except for a small portion that is excreted through the whistle and urine. The metabolic breakdown of alcohol in the human body is mainly done by two enzymes, ethanol dehydrogenase and acetaldehyde dehydrogenase. Alcohol, i.e. ethanol, is catalyzed by ethanol dehydrogenase to form acetaldehyde, acetaldehyde is catalyzed by acetaldehyde dehydrogenase to form acetic acid, and acetic acid is finally oxidized to carbon dioxide and water and excreted from the body. What we usually call drinking alcohol on the face is because of the difference in the number and activity of acetaldehyde dehydrogenase enzymes, the metabolic step of acetaldehyde forming acetic acid catalyzed by acetaldehyde dehydrogenase enzymes cannot be carried out quickly, acetaldehyde accumulates, capillaries dilate and the face becomes red. If the first metabolic step, i.e. the formation of acetaldehyde catalyzed by ethanol dehydrogenase, does not proceed properly, then one becomes directly intoxicated. In a very small percentage of people, the function of ethanol dehydrogenase is not perfect, so that the first metabolic step does not proceed properly, alcohol cannot be broken down, the oxygen-carrying capacity of the blood is reduced, and the face becomes increasingly white. Therefore, alcohol metabolism depends on key enzymes in the liver, and the number and activity of these two key enzymes are determined by genes, so I am afraid there is no better way to change the number and activity of the enzymes unless they are genetically altered. Although people who drink and blush or are incompetent to drink seem to grow in alcohol capacity after exercise, it is usually just that the body is more tolerant to alcohol, and if more alcohol is drunk, it will lead to the accumulation of more acetaldehyde in the body, causing more harm. Therefore, since the genes given by parents are not good at drinking, people who drink red or easily drunk or do not drink or drink less is better.