The older we get, the less tears we produce.

The older we get, the less tears we produce

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You are likely to blink more often when you are talking

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Each of your eyes has a small blind spot in the back of the retina where

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Spectacles had been treating long-sightedness for around for 300 years

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The first blue-eyed person is said to have lived 6,000-10,000 years ago

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A newborn baby will cry, but not produce any tears. Babies do not

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Blue-eyed people share a common ancestor with every other blue-eyed