KC is 9th least stressful U.S. city; St. Louis is 5th most-stressed

Are the Scientologists outsourcing their stress tests? Portfolio.com, the site that just won’t stop cranking out city rankings, tested the stress levels of the entire nation. Thankfully, it had nothing to do with Dianetics.
The site’s list names St. Louis the 5th most-stressed U.S. city. We Kansas Citians are 9th from the bottom, which is a good thing for once. But how can the populace of our easterly sister city be so much more stressed than us?