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TIL Alcohol withdrawal can cause vivid dreaming. Heavy alcohol use reduces the amount of REM sleep we experience each night, but that when we quit alcohol, REM sleep rebounds

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jNXMp TIL in 1920s - 1960s Germany, there was a trend to pose in a photo with a person in a polar bear costume. In thousands of photos, the bear doesn't change much in looks or poses, but history advances around the polar bear: from smiling beachgoers to smiling Nazis to smiling American G.I.s.
j6Mgn TIL that the ancient Mayan city of Caracol in modern-day Belize was founded in 1200 BCE, held more than double the population of the largest current day city in Belize (of 61,461), and the one of its temples, Caana, built ~9th century CE, is still the tallest building in the country today.
JYVm1 TIL Blue whales eat half a million calories in one mouthful
6wZZ TIL The Abe Lincoln is the only US President to register a patent - a device used to help boats over obstructions.
eoJ5 TIL that black and green olives are actually the same species of olive, except that they are picked at different times of the year.