Like HowStuffWorks on Facebook!

Top 10 Best Skin Cities

Cheyenne, Wyoming

According to the American Lung Association, Cheyenne is one of the least polluted cities in the U.S., which is crucial for healthy skin since pollution creates free radicals that can damage your complexion. It also helps that the capital of the Cowboy State has the shortest average commute for its residents (just 18 minutes!). Less time spent in traffic means less stress—and that's a good thing considering that stress damages collagen, increasing the appearance of fine lines and wrinkles.