To most westerners the ability to wink the eye and why we wink seems almost to be inbred.
For those who may not know, the definition of a wink is the brief closing of one eye. How many can remember being taught to wink or the reasons why we wink?
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interesting-eye-facts
Only humans from birth to old age can respond to crises such as grief, laughter, fear, even anger by crying. Emotional tears are a necessary part of the human makeup.
In a very simplistic way, the color of your eyes depends on your genes, which you inherit from your parents.Eye color comes from a combination of two black and yellow pigments called melanin in the iris of your eye. An increasing proportion of the yellow melanin, in combination with the black melanin, results in shades of colors between brown and blue, including green and hazel.
A claim is being made that blue light may keep you alert and offset fatigue when working through the night and missing sleep
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