veisalgiathe formal name for a hangover is veisalgia, from the Norwegian word for "uneasiness following debauchery" (kveis) and the Greek word for "pain" (algia).
there's a lot of stuff on the biology of hangovers but i was most amazed by the bio-medical explanation for "breaking the seal"
When alcohol is consumed, it enters the bloodstream and causes the pituitary gland in the brain to block the creation of vasopressin. Without this chemical, the kidneys send water directly to the bladder instead of reabsorbing it into the body. This is why drinkers have to make frequent trips to the bathroom after urinating for the first time after drinking.oof. apparently my brain is also pulling away from my skull. ow.