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TIL worldwide, around 65% of adults are affected by lactose malabsorption. Lactose intolerance is the ancestral state of all humans before the recent evolution of lactase persistence in some cultures, which extends lactose tolerance into adulthood.

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EWwp TIL that at many military funerals, instead of a live bugler, a ceremonial bugle is used, which is an electronic device that is inserted into the bugle and plays a recording of Taps.
LeZZ TIL: Halden Prison in Norway is a maximum-security prison. It was created with a focus on rehabilitation that is reflected in its design. Its design is projected to help inmates reintegrate into society easily by simulating life outside the prison. It has been called the world’s most humane prison.
5VoLk TIL Duct tape was invented by an Illinois mom during WW2. She had to write a letter to FDR explaining how it's easier for soldiers(including her sons) to pull her tape off in battle without using a knife.
5o7R TIL that in 1995 the Church of Scientology imprisoned, dehydrated and starved a mentally ill woman for 17 days until she died.
loNr1 TIL The stereotype of the “dense US southerner” comes from Hookworm, a parasite that causes developmental delays in children. Absorbed through feet and common when around raw sewage, it’s common in impoverished areas. It was rampant in the early 20th century, and it’s back.