Interesting Vision Info of the Month - Why Crying Produces Tears?
June 7th, 2008
Tearing is an important part of the lubrication system that helps keep eyes moist and healthy. But tears associated with emotional responses and crying, known as psychogenic tears, are much harder to understand. And there is some disagreement in the scientific community about why humans, above all other living creatures, have the need to engage in crying at all.
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Categories: Tears | Tags: Tears | No Comments
