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TIL that when you fall in love, your serotonin levels drop to a point that rivals a person with OCD, which is why you get an obsessive wanting for your partner.

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BrAge TIL the “R” in the abbreviations “Mr.” and “Mrs.” are contraction forms of the titles “Master” and “Mistress.”
4XELw At least one-third of early deaths could be prevented if everyone moved to a vegetarian diet, Harvard scientists have calculated.
0w5BR TIL Out of all the species that ever lived throughout all of Earth’s history, only a fraction of a percent have fossilized. Even fewer are discovered by humans. Most of life’s history will be forever unknown
QN0BL TIL Jain scriptures dated from the 6th century B.C. propose the existence of "nigodas," tiny creatures living everywhere, in the tissues of plants and animals. It wasn't until 1646 when Athanasius Kircher wrote that milk and vinegar were "abound with an innumerable multitude of worms"
9Yk8D TIL about the "nocebo" effect, which is the opposite of the placebo effect. This was demonstrated when a man tried to OD on antidepressants and required IV treatment for low blood pressure, which returned to normal when he was told the pills were fakes