That face you make when inserting contacts, putting on eyeliner, or applying mascara is a bizarre human quirk right up there with sneezing in sunlight and contagious yawning. Why do you feel a compulsion to open your mouth when it comes to messing with your eyes? There's no definitive answer, but the leading theory is pretty compelling.
Blink and You'll Miss It
Written by Ashley Hamer October 23, 2017
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