Mary VanDam pours coffee for patron Jim Brumm at Mr. B's Pancake House in Laketon Township, Mich. Cory Morse/Muskegon Chronicle via AP hide caption

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Nervous About Alzheimer's? Coffee May Help

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Scientists thought that people with stronger taste sensations would have needed less salt. TooFarNorth/Flickr hide caption

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Why 'Supertasters' Can't Get Enough Salt

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Youth teams play on an auxiliary outdoor rink before the 2010 New Year's Day Winter Classic NHL hockey game. New research shows that young players in leagues that allow checking are much more likely to suffer concussions and serious injuries than kids who play in leagues that ban it. Elise Amendola/AP hide caption

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In Youth Hockey, 'Checking' Ups Risk Of Brain Injury

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New studies show that getting enough sleep can improve performance in academics and athletics. iStockphoto.com hide caption

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Want To Get Faster, Smarter? Sleep 10 Hours

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Researchers found that moms were more likely to stop buying junk food when it cost more. Paul Vernon/AP hide caption

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Why Making Healthful Foods Cheaper Isn't Enough

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Not only are kids snacking more frequently, but they're eating more unhealthful foods, too. iStockphoto.com hide caption

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New Trend Shows Kids Snacking Every Few Hours

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Scientists are working to understand what hormonal and physiological cues in the body lead the brain to respond to food emotionally. iStockphoto.com hide caption

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Rational Or Emotional? Your Brain On Food

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First Lady Takes Aim At Childhood Obesity

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Bob Karch is the chairman and a professor in the Department of Health and Fitness at American University. Here, he helps cross-country champion Steve Hallinan check his heart rate while cross-training on the bike. Allison Aubrey/NPR hide caption

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How Revving Up Your Heart Rate, Even A Bit, Pays Off

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