Reddit Gold: “What’s a cool fact about the human body that a lot of people don’t know?”

Reddit Gold highlights the most useful and educational content on Reddit as found on r/AutoBestOf.

Today’s post is from u/ArtEclectic who answers the question: “What’s a cool fact about the human body that a lot of people don’t know?

Some people will cough if they put something in one ear, a very small percentage will cough if something is in either ear. It is called Arnold’s ear-cough reflex.

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