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TIL Like many other places in the body, the mouth also has symbiotic bacteria which contribute to oral health. However if there is gum disease leading to the bacteria entering the bloodstream, that can cause heart disease. So Oral Health is linked to Heart Health.

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YpBpx TIL Morton's fork is a type of false dilemma in which contradictory observations lead to the same conclusion. Asserting that a person suspected of a crime who is acting nervously must have something to hide, while a person who acts calmly and confidently must be skilled at hiding something.
Yjgv TIL scientists studied a parrot for 30 years and found he had the intelligence of a five-year-old human. He had a vocabulary of 150 words and could ask for a banana. If he was offered a nut instead, he would stare in silence, ask for the banana again, or take the nut and throw it at the researcher.
oRnkY TIL that the first Tay Bridge collapsed in a winter gale in December 1879, just nineteen months after opening, plunging a passenger train into the Firth of Tay and killing all 75 people on board
Mee0B TIL one of the co-writers of the song "You Are My Sunshine" was later the governor of Louisiana.
yQy9J TIL that chemistry graduate student Barry Kidston gave himself Parkinson's disease after ingesting a compound he synthesized for a legal high. An impurity he neglected is toxic to dopamine neurons, which is responsible for the effect. He was treated, but died of a cocaine overdose 18 months later.