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TIL The Sonic Hedgehog protein, a signaling molecule in the human body that regulates embryonic development.

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M74mW TIL An Australian hacker was jailed for causing millions of litres of raw sewage into parks and rivers
7806M TIL that nattokinase, an enzyme contained in nattō, exhibits strong fibrinolytic activity and inactivates plasminogen activator inhibitor 1—a risk factor for thrombosis and atherosclerosis—when it comes into contact with human blood or blood clots.
p8OeO TIL married men are healthier than men who were never married or whose marriages ended in divorce or widowhood. Men who have marital partners also live longer than men without spouses.
x6Ek7 TIL: The only Congressional Medal of Honor not presented publicly at the White House and not by the President was Captain William McGonagle's medal for his actions during the 1967 attack on his ship
ZNxY TIL the UN put the cost of solving World Hunger at $30 billion a year. That’s less than $100 a year or around $7 a month per person in the United States.