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TIL That serotonin, the neurotransmitter responsible for happiness, can be toxic. When injected into skin it causes extreme pain and is a main ingredient of wasp venom

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9w5Np TIL In 1747, James Lind conducted what is considered the first controlled clinical trial aboard a ship to treat scurvy. In addition to lemons, he tested cider, vitriol, seawater, spices, and vinegar as other treatment arms.
6bkX TIL that Space Jam is the highest-grossing basketball movie of all time.
QNQ9a TIL in 1930 a 11,000-Ton Telephone Exchange Building Was Moved Without Suspending Its Operations
8ePPL TIL about Clowns without Borders, an international organization that travels to conflict zones around the World to relieve suffering through laughter
ADKga TIL a Florida woman used the Pizza Hut app to get police help. Her boyfriend held her hostage with her children, and took her phone away. She convinced him to let her use the phone to order a pizza; she put in the comments: "Please help. Get 911 to me." Police arrived; the boyfriend was arrested.