› added 6 years ago

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TIL that for years a man deliberately infected himself with tape worms to help treat his ulcerative colitis, a common bowel disease. Doctors found that after infection areas of his colon started producing mucos again which is key to healing and IL-22 a molecule that promotes epithelial growth.

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6b8 TIL classical music concerts had loud, moving, wild audiences during the performance.
R79v6 TIL there was technically a second Norman Conquest of England, in the 13th century King Louis VIII briefly seized control of England and declared himself King before being defeated a few months later. He was never officially crowned.
JYyw1 TIL we can see the shadows of the capillaries in our eyes. Our brains just ignore them because they offer no useful information to us (kind of like how you don't see your nose unless you focus on it.) This is called the Troxler Effect. I linked a procedure you can follow to see the shadows yourself.
0dGdN TIL Orcas will even kill other whales
rJ6e TIL dogs can understand that when we look at them and then stare at something, they should turn their attention to it.