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TIL that in 2004 the average attention span was found to be 150 seconds long. By 2012 it had declined by half to 75 seconds, and by 2018 the average attention span had decline further to just 47 seconds long.

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grMe8 TIL that uterus transplantations are possible. For instance, in 2019 two births took place in Germany after a successful transplantation. The receiving women suffered from a syndrome called Müllerian agenesis and were born without a vaginal tract.
JGPl TIL of the “Hygiene Hypothesis”, which states that a kid’s environment can be too clean to stimulate a kid’s immune system resulting in those kids getting sick more than kids brought up in households in which the parents don’t constantly douse everything/everyone in disinfectant & hand sanitizer.
MeKrB TIL There's a Batman's story called ''A Black and White World'' that reveals that all the Batman's stories are simply staged , and in that story they discuss themes like bad writings, how the actors prepares themself to act, and ends in The Batman and The Joker having a lunch together
d8xPE TIL: 5% of people do not experience a headache in their lifetime.
yQBrp TIL In 1925 the reporter and public relations executive Dorish Fleischman was the first married woman to be issued a United States passport in her maiden name. Also she was the first woman to report on a boxing match while working for the New York Tribune in the 1910s.