Why are chili peppers spicy?
Where are they grown?
The compound liable for chili peppers heat is capsaicin which is part of a food chemical group called vanilloids. When it is eaten it prompts pain receptors in the mouth and tongue that indicates heat.
Chili peppers originated in the Americas
It's a chemical they contain called capsaicin, which also has pain relieving properties. Hard to believe, but true!