14 points
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And not just water, electrolytes as well! Keep drinking the beer and water and your gonna piss out all your needed salts very quickly which can still lead to dehydration. Every 3 glasses of water drink one body armor (or Gatorade or your preferred electrolyte drink/mix) basically and you should be relatively a ok the next day.
Edit: made the last sentence a bit more clear
5 points
I just realized how I ended up with relatively minor hangovers at worst in college - the bar I frequented had free hot dogs and popcorn, which were salty, delicious little electrolyte sources.
4 points