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Why do tears come down from our eyes when we cry?

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Whether we're happy or sad, it doesn't take much to turn on the waterworks. But how and why do humans cry? read more

Let's check out our lacrimal system –– the system that produces and drains tears –– located around our eyes, and a little bit along our nose. The lacrimal gland, when stimulated, secretes tears, which is brought to the space between the eyeball and the eye lids through a bunch of ducts. read more

Things that can dry out your eyes, like cold air or wind, will make eyes water, too. To protect the eyes from getting too dry, the tear glands crank out the tears. Imagine skiing down a hill with dry eyes as all that wind rushed at you. read more

This tube carries the tears to the back of your nose (and this is why your nose 'runs' when you cry!) What makes eyes water There are several reasons why eyes produce more tears than are usually needed. crying * Something may irritate the eye. It could be something that has got stuck in the eye, like an eyelash or a speck of dust. read more

Tears do come out of our eyes when we are emotional – either very sad or happy – or when our eyes are irritated by something, like a bit of dust that gets into our eyes or when we cut an onion. Tears are needed for our eyes to work properly. read more

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