The Evolution Of Caffeine

Every second, people around the world drink more than 26,000 cups of coffee. And while some of them may care only about the taste, most use it as a way to deliver caffeine into their bloodstream. Caffeine is the most widely consumed psychoactive substance in the world.

Caffeine may be a drug, but it’s not the product of some underworld chemistry lab; rather, it’s the result of millions of years of plant evolution.

Source: How Caffeine Evolved to Help Plants Survive and Help People Wake Up - NYTimes.com

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