› added 7 years ago

115

TIL: That 80% of strokes are preventable.

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via reddit.com

NXgJM TIL that ethologist John B. Calhoun created "rat utopias" in order to conduct over-population experiments between 1958 and 1962. Ultimately, the experiments ended in societal collapse.
b6Q10 TIL that up to 31% of kids and 10–15% of adults grind or clench their teeth in their sleep. It’s linked to stress, anxiety, depression, headaches, TMJ pain, and sore jaws. Night guards don’t stop it, they just protect teeth from the damage
yn8J TIL that penguins have an organ which removes salt from water, allowing them to drink salt water.
xVrBb TIL Las Vegas has the most major concerts per capita of all US cities, with 59 major concerts per 100k citizens between 2013 and 2018. The #2 city, Nashville, had only 15.4 major concerts per 100k citizens.
kOK01 TIL a random British captain was chosen by George Washington to be executed in response to a hanging by loyalists which itself was in retaliation for another death. The allied French got involved after the French mother of the captain petitioned and he was released