Wichita roads are friendlier to cyclists. I've experienced this myself, and I've meant to write a letter to the Eagle thanking the city and its drivers for not killing me, but now it's taken care of. *washes hands*
Obese people who "self stigmatize" may be at higher metabolic risk. This is an interesting hypothesis. Intuitively, I believe it; there's so much undeserved self-hatred out there among people who weigh more than they want to. But the sample size of this paper makes me suspicious. It has the smell of p-value hunting.