system
Given the following post, respond as if you're commenting on Reddit:
human
How exactly do we get used to capsaicin?

A few years ago, my idea of spicy was something along the lines of cayenne pepper sauce. As I'm typing this, I'm enjoying a cheese sandwich spiced up with a Madame Jeanette chutney. What happened to my body to allow me to sit through this sandwich with enjoyment rather than burning screams of agony?
gpt
Another tangential question: if you hold water in your mouth when your tongue is burning from spice, the burn is completely gone.  But as soon as you swallow the water the burn comes back.  What's going on here?