August 29, 2009

Here is the article that inspired the Tears note

Article of the Day
Human beings produce three basic types of tears: basal tears, which lubricate the eye to keep it clear of dust; reflex tears, which wash out irritants, like onion vapors, that come into contact with the eye; and psychic tears, which result from strong emotions or physical pain and have a different chemical makeup than those created for lubrication. Though tearing as an emotional reaction is considered by many to be a uniquely human phenomenon, some studies suggest that what animals cry too? More... Discuss
Article of the Day provided by The Free Dictionary

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