If you have ever had the urge to go to the bathroom while visiting a book store just know you’re not alone and that it’s actually a common thing! It’s unofficially called “Book Bowels” or the “Mariko Aoki phenomenon” and is a psychological issue where our brains trigger our body into a “fight or flight” reaction based on our history with similar environments. Essentially, if you had a bad experience in a library or bookstore, then you’re body will have the same reaction in similar environment that has books. Another theory involves reading on the toilet and your brain seeing books and going “oh, it’s time to drop a deuce” because your colon and body will associate reading with using the restroom.