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Fast Facts about Caffeine

Steve February 24, 2014

caffeine facts10 to 15 minutes: time it takes caffeine to appear in your bloodstream
60 to 90 minutes: time it takes to reach peak caffeine levels after you drink coffee
3 to 5 hours: time it takes your body to reduce caffeine levels by half
10 to 12 hours: time it takes to clear caffeine out of your system

This means that, if you’re a regular morning coffee drinker, each day you wake up in the middle of caffeine withdrawal.  If you drink coffee throughout the day, your body is essentially always under the physiologic effects of caffeine, whether you feel the buzz or not.

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