Besides taking in the extra liquid, drinking beer makes you pee because alcohol is a diuretic, actively flushing the fluids out of your body.
It’s this dehydration that causes hangovers.
The best way to prevent a hangover is to drink water as a chaser and to down a few glasses of water every time you get up in the night to go to the bathroom.
Beer is one of the oldest alcoholic beverages in the world and dates back to the early Neolithic period around 9500 B.C.
Its consumption is recorded in the written history of ancient Egypt and Mesopotamia.