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TIL there is a disease known as "fatal insomnia" which prevents you from ever falling asleep. This leads to hallucinations, panic attacks and eventually, death.

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aw9JL TIL that crows can and do hold grudges. Researchers in a specific mask trapped 7 crows, resulting in the entire flock harassing anyone in this mask for years, even when disguised with a hat. This means the crows recognized the face and also communicated the grudge to crows who had not seen it.
Y7VGB TIL that sugar isn’t directly bad for your teeth, but rather it creates the perfect environment for bacteria in your mouth to thrive, and they produce acid as a byproduct which IS bad for your teeth.
4k4A5 TIL that In 2018, Pope Francis married two flight attendants in an impromptu mid-air wedding on a plane during a trip to Chile. The couple had gotten married in a civil ceremony in 2010 but weren't able to follow it up with a church service because of the earthquake in Chile that year.
Lk5Qp TIL that Dysthanasia (opposite of Euthanasia) refers to the life extension of a person without regards to that person's quality of life.
rGeo TIL The Sustainable Dance Floor uses the kinetic energy produced when people move as a source of energy that is then converted into electricity. People will be able to generate their own energy to illuminate the space around them, just by walking over SEF modules.