Think you know it all? Even smart people can make big health mistakes.
You may think you know it all when it comes to your body, but there are plenty of health mistakes even the smartest people make, according to Yahoo! Here are the Top 6:
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The Beatles hit No. 1 for the first time in America, tragedy strikes space shuttle Columbia, and Janet Jackson suffers a Super Bowl "wardrobe malfunction," all on this day.
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