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TIL Okinawans in Japan are the only human population to have a self-imposed habit of calorie restriction. They believe in eating until they are 80 percent full and has the world's highest proportion of centenarians

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ejJk TIL - Dunbar’s Number is 148, the predicted human “mean group size” of the limit to the number of people with whom one can maintain stable social relationships.
yQJMp TIL Bernard Fox appeared in two films about the sinking of the Titanic, 'A Night To Remember' (1958) and 'Titanic' (1997). In the latter, he delivered the line "Iceberg dead ahead, sir!"
kO4J4 TIL of the Oh-My-God particle, recorded in 1991 over Utah traveling 99.99999999999999999999951% the speed of light -The tiny particle had the kinetic energy of a 58 mph baseball (or 100 quintillion times the photon energy of visible light)
GY8v5 TIL in his book, tennis player Novak Djokovic said in 2010 he met with a nutritionist who asked him to hold a piece of bread in his left hand while he pressed down on his right arm. Djokovic claims he was much weaker while holding the bread, citing this as evidence of gluten intolerance.
R7WB7 TIL Mary Mallon (Typhoid Mary) was an asymptomatic carrier of typhoid fever. She worked as a cook and presumed to have infected 51 people, three died. She refused to believe she carried the disease. Years after her first quarantine, she changed her name went back to being a cook.