Articles
Caffeine: How much is too much?
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How much is too much?
You drink more than 4 cups of coffee a day
Even a little makes you jittery
You're not getting enough sleep
You're taking medications or supplements
Curbing your caffeine habit
The bottom line
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If you rely on caffeine to wake you up and keep you going, you aren't alone. Millions of people rely on caffeine every day to stay alert and improve concentration.
