system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that we can eat extremely spicy food and enjoy it but afterwards our stomach and toilets are destroyed?

Asking for a friend and totally not because I’m dead in the toilet now after eating and enjoying extremely spicy food

ETA: I meant like why does it feel like we are taking a dump from the pits of the hottest hell?
gpt
Your butthole actually has similar receptors as your mouth and tongue, as well as the one that detects spicy. The capsaicin that makes things spicy is waxy, so it sticks to things it touches and is hard to get off. It's also not easily digestible, so some of it will pass all the way through and get stuck on your butthole when you poop. Since your butthole has the spicy receptor, it burns!