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TIL in a part of southern India there is a custom for children to kill their parents when they get too old or if they can’t afford to take care of them.

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8a9WZ TIL that in an experiment done on mice with Alzheimer's, exposing them to lights flickering at 40hz for an hour, reduced the beta-amyloid plaques in their brains by 50%.
b6p6p TIL 'Foldering' is a clandestine way of electronically communicating. It involves communicating via messages saved to the "drafts" folder of an email or other messaging account that is accessible by multiple people. The messages are never actually sent, its a digital equivalent of a dead drop
4XQog TIL that Koi carps bread outside of Japan live on average 15 years, while the average age of Japanese koi is 40 years and the oldest recorded lifespan is 226 years (the Koi named Hanako lived from 1751 to 1977).
QwRp TIL that Andrew Jackson chose a donkey as the Democratic Party’s mascot because his political enemies called him a jackass.
oRNZE TIL White Bread is the standard reference for measuring glycemic index, and it will spike your blood sugar more than if you ate pure sugar.