system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why do we sweat when eating something spicy?
gpt
Eating spicy foods stimulates the trigeminal nerve, which innervates the face and mouth. Since piquancy (spiciness) in foods is interpreted by the body as heat, it's believed that the sweating is mainly a result of the trigeminal nerve trying to shed what it thinks is excess heat.