Addictive Drugs That Are Actually Pesticides


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From coca leaves to coffee beans, people use plants to produce many of the most popular drugs in the world. But whether it’s your $5 morning latté or a line of coke, you might be surprised to learn why plants bother to build the molecules behind that buzz in the first place. Strangely enough, many plant-based drugs—such as caffeine, cocaine, nicotine and morphine—are all made for the exact same reason: to fight off insects. Why exactly do humans love ingesting insect repellent so much?

CAFFEINE, COCAINE, NICOTINE AND MORPHINE: PLEASURABLE PESTICIDES

According to Dr. David Kennedy, who studies plants and the human brain at Northumbria University, to understand what it is about nature’s pesticides that gets us so enjoyably high, it first helps to look at the world from a plant’s perspective. “Unlike animals, plants are rooted in where they live, and can’t really get away from any threats they might…

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