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TIL to understand diabetes, a lock and key analogy is useful. To provide energy to cells, insulin (the key) unlocks cells to let sugars in. Type-A is the pancreas producing too few keys, so insulin is injected. Type-B means rusty keyholes, which can be fixed with exercise, weight loss, or medicine.

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ORog TIL that in the state of Ohio, an employer does not have to give a break to someone when they are working if they are over 18.
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Ooe86 TIL the law governing firearms in Ireland used to consider airsoft guns legally equivalent to a 20mm anti-tank rifles, as the law failed to specify a minimum energy for a gun’s projectile.
OoL6e TIL artist Tracey Emin exhibited 'My Bed'. The stained bed she was in for 4 days during a bout of depression. Two other artists did "Two Naked Men Jump into Tracey's Bed"
pYAKN TIL author Maya Angelou was a friend of Martin Luther King Jr. King was assassinated on her 40th birthday. For many years after she didn't celebrate her birthday only marking the occasion by reaching out to King's widow.