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How to go working after a long drinking night
Hydrate.
Drinking plenty of water is one of the best things you can do to prevent a hangover in the first place and to help treat the symptoms if you already have one.
Try to drink one glass of water for every alcoholic drink you have throughout the night.
Drink water before going to bed and keep a glass within reach in case you wake up thirsty. Start drinking plenty of water as soon as you wake up the next morning and continue throughout the day to keep your hangover at bay.