Caffeine is the most used psychoactive stimulant across the world.

According to the National Coffee Association, 60 percent of Americans drink coffee every day. That's more than any other beverage, including tap water. And 85 percent of people in the U.S. have one caffeinated beverage per day, according to the National Institutes of Health.

Coffee and tea aren't the only way to get a caffeine fix anymore. Synthetic caffeine sources are increasingly available through energy drinks and other supplements.

For this installment of our In Good Health series, we discuss the good, the bad, and the risky when it comes to our caffeine consumption.

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