But there's no real heat in a pepper. So, what's going on? It's all about a chemical compound in peppers called capsaicin. Capsaicin binds to pain receptors on our nerves called TRPV1. Normally ...

The burning sensation of hot peppers comes from capsaicin, a compound that binds to the heat receptors in your mouth. While it does not cause physical damage, the sensation is strong enough to make it ...