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TIL a group got instructions to sleep as long as they wanted, their cortisol started to rise at 8, and woke up at 9. Another group was said they’d wake up at 6, and their CRH and cortisol rose at 5. Just their expectations of waking time changed the behaviour of stress hormones.

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9YP6G TIL Triptans are synthetic drugs used in the treatment of migraines. They are structural analogues of DMT and Psilocybin. They are available by prescription in the US, while DMT and Psilocin remain Schedule 1 drugs because they have "no currently accepted medical use and a high potential for abuse".
0PKj TIL there was an attempted coup d'état in Japan the night before they surrendered to allies during WWII, in an attempt to stop the surrender and continue fighting.
1alJO TIL $30,000 in 1964 is equivalent in purchasing power to about $248,476.45 in 2019, a difference of $218,476.45 over 54 years. The 1964 inflation rate was 1.31%. According to the Bureau of Labor Statistics consumer price index, today's prices in 2019 are 728.25% higher than average prices in 1964
9YboM TIL that on June 23, 2014 Charles R. Moore a white minister from Texas set himself on fire to protest racism
mDbP TIL the President of the United States is granted access to classified information only on a “need-to-know” basis