Caffeine: The World's Most Popular Drug

It's not just in coffee anymore. From drinks to jerky to gum, caffeine is everywhere. In our latest video, we take a look at the science behind the world's most popular drug, including why that little molecule keeps you awake and reveal just how much caffeine is too much.

It's not just in coffee anymore. From drinks to jerky to gum, caffeine is everywhere. In our latest video, we take a look at the science behind the world's most popular drug, including why that little molecule keeps you awake and reveal just how much caffeine is too much.

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