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TIL that patients with Bipolar disorder, even “rapid cycling” are affected by one episode for weeks/months at a time. Therefore, someone who is “manic” in the morning and “depressed” in the evening is not Bipolar.

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Lk1O9 TIL a 72 year old heath expert went on the Dick Cavitt show, announced "Ive decided to live to be a hundred", then died minutes later on stage.
grOQ4 TIL in 1962 a General Electric engineer named Nick Holonyak developed the first LED light bulb capable of emitting visible red light. The same bulb was used in the 1964 stop animation animated TV special Rudolph the Red-Nosed Reindeer for Rudolph’s bioluminescent nose.
R7jk9 TIL the last name 'Fart' is the 2,921,133rd most commonly occurring family name in the world, borne by approximately 1 in 169,468,245 people. The last name Fart occurs predominantly in Asia, where 47 percent of 'Farts' live; 44 percent live in West Asia and 44 percent live in Levant.
XE8vX TIL: The study of the origin of language has frustrated scientists for centuries. Due to the lack of empirical evidence to work with, the Linguistic Society of Paris banned discussion of the topic in 1866 as unproductive, a ban academic linguists observed until the late 20th century.
dDkDj TIL that Kalawao County in Hawaii only has 82 residents. It was originally established as a place to isolate Hansen's Disease (leprosy) patients. It is only accessible by air or mule trail, and is governed by the Hawaii health department.