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TIL: Streff Syndrome is a rare condition that occurs mostly in pre-teens where eyesight deteriorates with high amounts of emotional stress.

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loVL5 TIL That Albus Dumbledore's Chair From The Harry Potter Films Was The Inspired By The Coronation Chair AKA King Edward's Chair.
E1lYw TIL of the theremin, an instrument played without any physical contact which was invented in 1920.
WkWP4 TIL that tree's secretly talk, share resources and steal from each other using a fungal network called the "Wood Wide Web".
jNV9R TIL cockroaches wont eat cucumbers. This is due to a chemical in cucumbers (trans-2-nonenal) which acts as a natural replent for ants and roaches.
9Y9yQ TIL penguins can drink saltwater because of glands near their eyes that remove salt from their bloodstream and then they can sneeze out the extra salt.