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TIL: Types of BPD and How They Define Borderline Personality

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vPYaK TIL that although you can buy different grades of isopropyl (rubbing) alcohol, 70% is actually most effective for disinfecting; the added water helps it to dissolve more slowly, penetrate cells, and kill bacteria.
W7LrN TIL that the geologist Michel Siffre spent 2 months underground without time cues to study how his body clock adapted, repeated the experiment for even longer on himself and more subjects, and discovered that their bodies tended to switch to a 48-hour clock. In one case, one even slept 34 hours.
K5ew TIL: considering the natural process of bone properties, development & growth, it’s fundamentally possible for animals to evolve metal skeletons.
E1poW TIL that a woman named Chiara Vigo is the only person in the world who knows how to make sea silk.
9YonG TIL a daughter of US Rep. Leo Ryan (who was famously murdered while investigating the cult at Jonestown in 1978) later went on herself to join the Rajneesh movement (which orchestrated the first and largest bioterror attack ever in the US, and plotted to assassinate a US Attorney).