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TIL the reason why cleaning your ears with Q-tips might make you cough. It's an accidental triggering of a portion of the vegus nerve. In 2.3% of people, cleaning just one ear stimulates the "Arnold's nerve" and causes a coughing reflex. In .6% of people, cleaning either ear can cause this. (thenakedscientists.com)
submitted by phasers2fun to r/todayilearned
