A new Yale study finds that cooler temperatures impair our immune systems – allowing cold, flu and other viruses to multiply.
Sweater Weather: Why the Cold Spreads Colds
source U.S. News - News http://ift.tt/1wcEoOp
Sweater Weather: Why the Cold Spreads Colds
source U.S. News - News http://ift.tt/1wcEoOp
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