After drinking coffee can not drink, the main component of coffee is caffeine, caffeine has the role of stimulating the central nervous system, but also accelerate the body’s metabolism, alcohol also has a similar role, the combination of the two together will make the nerves extremely excited, stimulate vasodilation, accelerate blood circulation, causing a great burden on the body. According to research, the combination of alcohol and caffeine in coffee is extremely unsafe, and drinking a mixture of caffeine and alcohol is more than three times more likely to be paralyzed by alcohol than people who simply drink alcohol. The high level of nerve paralysis is detrimental to the body, which is constantly in a state of extreme arousal, placing a tremendous burden on the cardiovascular system and forcing the body’s normal regulatory functions to be impaired. Combined with the above points can be seen between the role of alcohol and coffee, there is a lot of harm to the human body, so you can not drink alcohol after drinking coffee.