It is found that the main chemical component of alcohol is ethanol, which is not carcinogenic. When ethanol enters the human body, it will be synthesized into acetaldehyde by alcohol dehydrogenase, which is a carcinogen. But acetaldehyde will soon be synthesized into acetic acid by acetaldehyde dehydrogenase secreted by the liver. Some people have insufficient secretion of acetaldehyde dehydrogenase, which will do great harm to the liver. Therefore, drinking alcohol is harmful to the liver. As for acetic acid, the main component of vinegar, it is not carcinogenic. So acetaldehyde is the main cause of cancer. What kind of wine is brewed from grain is beneficial and harmless, which is purely pseudoscience. Those who advocate these arguments are either stupid or bad! To say the benefits of wine is nothing more than anesthetizing yourself and society. People will figure out many things when they are awake, and they can escape from reality when they are drunk.