acetaldehyde would like a word…
The Chemical Breakdown of Alcohol
Alcohol is metabolized by several processes or pathways. The most common of these pathways involves two enzymes—alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH). These enzymes help break apart the alcohol molecule, making it possible to eliminate it from the body. First, ADH metabolizes alcohol to acetaldehyde, a highly toxic substance and known carcinogen.Then, acetaldehyde is further metabolized down to another, less active byproduct called acetate, which then is broken down into water and carbon dioxide for easy elimination
https://health.howstuffworks.com/wellness/drugs-alcohol/hangover4.htm
if you want to avoid the hangover take some L-Cysteine before you drink
another great video by kitboga