Comment Re:Hangover??? (Score 1) 110
A hangover is caused by dehydration.
No it's not. A hangover is caused by ethanal poisoning. Ethanal (archaic name: acetaldehyde) is what your liver converts ethanol into - it converts that to ethanoic acid (archaic name: acetic acid, aka vinegar) before it excretes it. Ethanal has an apple smell and even inhaling its fumes can give you a mild hangover. Water helps dilute it and helps your body excrete it, but dehydration only exacerbates a hangover, it doesn't cause it.