What makes jalapeños hot, and do they have other super powers?
Chemistry For Your Life
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The Power of a Little Change Can Make a Big Difference
Capsaicin is an organic molecule. It's in the same group as vanilla, but it has a different side chain. The receptor that it triggers triggers as a pain receptor from heat. So it sends a signal to our brain that the thing is hot. And our brain takes that as bad pain.
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