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TIL people older than 75 years who have cognitive abilities as good as someone in their 20s and 30s are called superagers. A lot of their superaging comes from life-long exercise, connection with nature, and life-long mental activities. Robert De Niro, Rusin Bond, and Dadi Bhagwani have superaged.

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OoKM7 TIL Richard the Lionheart, King of England, barely spoke a lick of English and collectively only spent about 6 months in England.
e0RVJ TIL about Jeremy Bentham, a philosopher/professor whose will requested that his body be preserved and memorialized . He's now on display at University College London, where they sometimes bring him to board meetings where the roll caller marks him as "present but not voting".
wxnW TIL evidence shows that the space shuttle Challenger’s crew survived the explosion and could have been conscious until the crew cabin hit the ocean. 4 of 5 recovered crew air packs had been activated and pilot switches that could only have been moved manually by a person were moved.
p8aZ8 TIL that in Kentucky, Ohio, and Mississippi "idiots" are prohibited from voting. Ohio's Constitution states: "No idiot, or insane persons, shall be entitled to the privileges of an elector". Originally these terms referred to people with mental disabilities.
YpY0x TIL Gravity ISN'T a force, as we can't distinguish between being still, moving at constant speed or falling (as all objects fall at the same speed when there aren't other involucrase forces). This is called the Equivalence principle. Here you can see some information about it: