09/25/09: Americans do this twice as much as Italians. Experts say we do it too much. What is it? Tools Email this article Print this article YouNews™ Digg this! Save to Delicious Post to Facebook Share on Twitter Close Story Published: Sep 25, 2009 at 7:54 AM PDT Story Updated: Sep 25, 2009 at 7:54 AM PDT Answer: Shampoo our hair

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