If one really gets 'trashed', the best thing to do is to drink liquids. Water or Gatorade; to re-establish electrolytes. And re-hydration.
The reason why a person gets a headache after drinking alot, hence the "hangover feeling" is because they dehydrated themselves. Alcohol, by nature, by biochemical composition, is a dieuretic. It promotes diuresis of H2O --> hence the heavy urination.
To evade the excessive feeling of hangover, drink water or electrolyte drinks after drinking a heavy 'cocktail'.
Cheers!
And to everyone, Drink responsibly.
Drink in moderation, don't be an alcoholic.
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