Survey: The city with the most nasal congestion is...

If mold, dust and other culprits are shutting down your nasal passages, you might find it useful to know which U.S. cities’ residents have it even worse. It turns out that people living in Oklahoma City, Okla., suffer the most nasal congestion of any metropolitan area in America.

That’s according to a new study conducted by (of course) Breathe Right Nasal Strips and Sperling’s BestPlaces, which found that in Birmingham, Ala., New Orleans, La., and Louisville, Ky., you’re likely to hear a sniffling sound for much of the year. The study’s authors say that over all, 20 percent of Americans suffer from chronic nighttime nasal congestion.