Preventing colds may be as easy as vitamin ZZZ

CHICAGO (AP) -- Fluff up the pillows and pull up the covers. Preventing the common cold may be as easy as getting more sleep. Researchers paid healthy adults $800 to have cold viruses sprayed up their noses, then wait five days in a hotel to see if they got sick. Habitual eight-hour sleepers were much less likely to get sick than those who slept less than seven hours or slept fitfully....

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