system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What triggers the intense coughing when cleaning your ears with Q-Tips?
gpt
You have something call "Arnold’s nerve" in your ear which is connected to the "Vagus nerve". The Vagus controls important stuff like coughing and breathing. When you touch the inside of your ear the Arnold’s nerve sends a signal which sometimes the Vagus misinterprets. Instead of telling your brain that you have something in your ear it tells your brain that you have something in your throat. When your brain hears that it starts coughing to remove the nonexistent throat object.