If coke is mixed with beer, it is often because beer originally contains a small amount of carbon dioxide. After adding coke, excessive carbon dioxide will further promote the absorption of alcohol by gastrointestinal mucosa. This makes people feel drunk more easily. That is to say, I often fall in love with my head. I can drink some milk to protect the gastric mucosa before drinking, and if I drink coke and then beer, it will easily lead to too much gas in my stomach and cause irritation to my stomach. The carbon dioxide in cola will carry alcohol to various organs of the body. It is extremely harmful to the body.