Honking horn

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Lay Off the Horn for Your Health
Nobody likes a honker, and making a lot of noise is no more effective than repeatedly pressing an elevator button—nobody is magically going to jump out of your way, says Vanderbilt. European studies have linked traffic noise to raised blood pressure and heart attacks, among other cardiovascular diseases. In other words, save the horn for emergency situations only, and you'll be less likely to end up in the ER yourself.
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