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What "heading" a soccer ball does to your brain; Also, chewing gum can make you a better test taker; And, scientists confirm that boozing can lead to really bad decisions. CBSNews.com's Nick Dietz has the details.

SANDWICH, England (AP) -A really bad week for Rory McIlroy proved to be a really good week for learning a lot more about golf's hottest new star. The British Open opened a more illuminating window into his mind and game than victory in the U.S.