Tuesday, January 19, 2010

Why do we get the shivers if someone scraps their nails down a chalk board?

It's because the high frequency sound has been programmed to induce a reaction in our bodies, to prepare us to either fight or flight, in case it's a threatWhy do we get the shivers if someone scraps their nails down a chalk board?
im not so sure about the scientifical explaination, but i believe that its an unusual sound to our ears...

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