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Author Topic: Why do humans cry when they feel sad?  (Read 1164 times)

Offline The Scientist

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Why do humans cry when they feel sad?
« on: 03/07/2010 15:15:29 »
Is this topic related to Physics, Chemistry or Biology? What do you think about this topic. If you know the answer, please answer it as detailed as possible. Thank you.


 

The Naked Scientists Forum

Why do humans cry when they feel sad?
« on: 03/07/2010 15:15:29 »

 

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