Our Health: Louder and louder world harms our hearing

So much noise. Rock concerts. Traffic. IPods. Always something in your ear. Until nature demands silence.

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<p><a href="http://www.physorg.com/news154962593.html">Our Health: Louder and louder world harms our hearing</a></p> <p> So much noise. Rock concerts. Traffic. IPods. Always something in your ear. Until nature demands silence.</p>