› added 2 years ago

100

TIL that when the doctor diagnoses you with patellofemoral pain syndrome, it just means that your knee hurts and the doctor isn't sure of the cause.

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neAnW TIL that while only 9.7% of Americans don't wear seatbelts, 47% of those who die in car crashes were not wearing seat belts.
wAno TIL that Dr. Donald Unger won an Ig Nobel Award in medicine after systematically cracking the knuckles on his left hand and not his right hand for 60 years, demonstrating that knuckle cracking does not cause arthritis.
9Ymxr TIL that a "loose cannon" is an apt name for something out of control: when an 8000 pound cannon came loose from a mooring on a ship, it could wreak terror on the crew as it wiped out anything or person in its path and destroyed the ship's walls
JbP8 TIL a young Xhosa girl had a vision instructing the tribe to kill all the cattle and destroy the crops, as a sacrifice to the ancestors who would rise up and drive the white settlers into the sea. Thus began the ‘Great Cattle Killing’ after which over 40,000 Xhosa died in the resulting famine.
KOPo6 TIL that only 2% of human population have green eyes