7 Surprising Signs Your Immunity Needs a Boost

[riky]

7 Surprising Signs Your Immunity Needs a Boost

Some people seem to survive cold and flu season with nary a sniffle. And yet plenty others seem to catch cold after cold; sidelined with a perpetually stuffed-up nose and hacking cough that lasts all winter. So what's different between these two groups? Research shows your cold and flu vulnerability may come down to a few importantâ€"and unexpectedâ€"habits, like how much sugar you eat or how dry your nose is.       Â

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