Researchers have found that when bottles of sanitizer and wipes were kept around schools and students were cued to use them, they ended up missing significantly fewer days due to stomach bugs. /iStockphoto.com hide caption

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Meat preservatives like nitrites and sodium have been linked to insulin resistance, which might explain the link between Type 2 diabetes and high consumption of these meats, researchers say. iStockphoto.com hide caption

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A truckload of live turkeys arrives at the Cargill plant in Springdale, Ark., on Aug. 4. Most turkeys in the U.S. are given low doses of antibiotics, which breed resistant strains of bacteria, including Salmonella. Danny Johnston/AP hide caption

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McDonald's Facebook page on July 27. Courtesy of McDonald's via Facebook hide caption

itoggle caption Courtesy of McDonald's via Facebook

Larry Holzman does a series of eccentric wrist exercises using a rubber bar called the Thera-Band FlexBar. Maggie Starbard/NPR hide caption

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Mindfulness-Based Stress Reduction teaches simple techniques — such as using slow breathing — to focus your attention. iStockphoto hide caption

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Distraction is a factor in how much we eat. Mark Humphrey/AP hide caption

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