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TIL that runners wearing top-of-the-line trainers are 123 per cent more likely to get injured than runners in cheap ones. This was discovered as far back as 1989, according to a study led by Dr Bernard Marti, the leading preventative-medicine specialist at Switzerland’s University of Bern

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jNMxN TIL: China creates so much synthetic diamonds that are identical to real diamonds that prices of diamonds are being driven down and De Beers has created a university to study how to identify "natural" and "man made" diamonds because no experts can tell the difference.
jNnJM TIL of the sunk cost fallacy. It is the general tendency for people to continue an endeavor, or continue consuming or pursuing an option, if they’ve invested time or money or some resource in it, which becomes a fallacy if it’s pushing you to do things that are making you unhappy or worse off.
yNbJ TIL that there are two related phenomenon of déjà vu with names: jamais vu and presque vu. Jamais vu is, for instance, when a word is repeated so much that it doesn’t seem like a word anymore, and presque vu is when a word is on the tip of your tongue but you can’t think of it.
oBePE TIL That the famous "Bassline" of Seven Nation Army, by The White Stripes, is played by a guitar. And the band didn't even have a bass player.
R7JO8 TIL that the first statue in Athens which was funded by the state without depicting a god/gods, was the one of Armodios and Aristogeiton, who killed the brother of the tyrant Hippias, son of Peisistratos. The event led to intervention by Sparta, and ultimately the democratic reforms of Kleisthenes.