system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 What are we feeling when we eat spicy foods?

Edit: Thanks guys, really helped. I was eating chicken wings yesterday when it came to me.
gpt
Capsaicin is a chemical compound in spicy foods that binds to certain receptors on your tongue (and other parts of your body) that gives the illusion of heat. You can eat ice cold spicy food that will feel very hot.