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Sleep More, Sneeze Less: Increased Slumber Helps Prevent Colds

People who don't get enough sleep show higher levels of inflammation, say scientists who study colds. Smoking, chronic stress and lack of exercise can make you more susceptible to the viruses, too. (PhotoAlto/Corbis)
People who don't get enough sleep show higher levels of inflammation, say scientists who study colds. Smoking, chronic stress and lack of exercise can make you more susceptible to the viruses, too. (PhotoAlto/Corbis)

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