Drinking on the face refers to the redness of the face after drinking alcohol, representing the lack of ethanol dehydrogenase in the body.
Alcohol into the human body, need to be metabolized through the liver, metabolism is mainly dependent on the enzyme ethanol dehydrogenase, alcohol in the ethanol dehydrogenase under the action of the formation of acetaldehyde, and acetaldehyde is converted to acetic acid under the action of the enzyme acetaldehyde dehydrogenase, acetic acid through the urinary system to normal excretion of the body.
If the human body lacks ethanol dehydrogenase, will make ethanol can not be normally converted into acetaldehyde, acetaldehyde belongs to the vasodilator, its main function is to make the capillary expansion, if acetaldehyde can not be well metabolized into acetic acid, so that acetaldehyde long time to pile up in the body, the human body will appear on the face of the phenomenon of drinking.
Acetaldehyde is harmful to the human body, it is recommended to drink as little alcohol as possible.