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Fortune
Fortune
Karla Pope

How much caffeine is too much?

(Credit: Getty Images)

Can’t imagine starting your morning without a cup of coffee? You’re not alone. Many people around the world rely on that jolt of java to jump-start their day. In fact, 67% of American adults had coffee in the past day (more than any other beverage, including tap or bottled water). Why do so many consume this drink? One word: caffeine. 

Getting that caffeine fix is a daily routine for most, but when does it become too much? 

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