How long does a cup of coffee keep you awake?

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asked Mar 18, 2018 in Other-Food Drink by Ebenyu (250 points)
How long does a cup of coffee keep you awake?

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answered Mar 18, 2018 by Grahlu (51,270 points)
After I consume a few cups of coffee I can stay awake and don't feel sleepy for around 7 hours.

But it can be different for other people and some people even fall asleep after drinking coffee so it depends on the person on how much coffee intake they need to keep them awake for a certain amount of time.

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