Beauty is in the eye of the beholder, of course, and it's what's on the inside that counts, right? We couldn't agree more. Brains, muscles, teeth, fat and lungs -- they're all on the inside of the men in these cities. We studied everything from education stats and contraceptive and erotica sales (no sex generally equals less hot guys), to the number of gyms and the population's health, exercise habits, obesity and smoking rates in every city in the U.S. to find out where the fugly dudes are. Find out if the men in your city are ... not very pretty.

Houstonians ranked no. 8 in worst teeth, and more than 15 percent of men 25 and up have less than a 9th grade education. This booming metropolis also has a problem with body odor. According to our research, about one-quarter of the population is considered sedentary, and Houston has a higher than average obesity rate. Is it something in the water?

The City of Brotherly Love doesn't love its brothers so much -- "Travel + Leisure" magazine's survey of tourists and locals for America's Favorite Cities put it dead last in the "Attractive People" category. "Men's Health" ranked it no. 2 in worst teeth. The relatively high number of obese citizens doesn't help matters either.

"Rock City" definitely does not refer to the abs in this Midwestern city -- Detroit has one of the highest obesity rates in the country. A low percentage of men with bachelor's degrees and a low high school graduation rate put these guys high on the dull scale, too.

The men of Mobile and Huntington have it all -- terrible teeth (according to this worst-teeth cities list), a high rate of unhealthy, inactive and obese men and a paltry number of gyms.