Posted: Apr 27, 2012 9:05 AM by NBC, MN
The same spring pollen that is making you sniffle and itch may actually be protecting you from something even worse.
Researchers at Yale University say allergic reactions help fight against environmental toxins like exhaust and other chemicals.
They say that annoying runny nose expels pollutants we breathe in and a stuffy nose prevents more of them from getting into our bodies.
Some studies have even suggested that people with seasonal allergies may be less likely to develop certain cancers.
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