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Fact Your cornea has no blood supply at all Blood vessels would be opaque. So the tissue does without. 1 min read Fact Humans are among the best long-distance runners alive We lose almost every sprint and win a surprising number of marathons. 1 min read Fact The tip of the tongue is knowledge without access You know the first letter, the rhythm, the number of syllables. You cannot reach the word. 1 min read Fact Everyone with blue eyes shares one ancestor A single mutation, somewhere between six and ten thousand years ago, in one person. 1 min read Fact A stomach ulcer is usually an infection Two researchers were ignored for years. One of them drank the bacteria to prove it. 1 min read Fact Anticipating a loss hurts more than the equivalent gain pleases Which is why you defend what you have harder than you chase what you want. 1 min read Fact Most adults on Earth cannot digest milk Being able to is the mutation, not the norm. 1 min read Fact Your body produces its own morphine-like chemicals The word endorphin is a contraction of endogenous morphine. 1 min read Fact Chess has more possible games than the universe has atoms Not more positions. More games. And it is not close. 1 min read Fact Goosebumps are a leftover from having fur Your body is trying to fluff up a coat you no longer have. 1 min read