My butt is cold

I haven't really run for like the past month. So Monday night I got on a treadmill for 20 minutes, which was a good short run, but still kicked my ass. Late this afternoon, I went out to run Calhoun and Isles. Six miles seemed much farther than it usually does, in part because my ass was freezing. I mean really, my ass felt much colder than the rest of my body. Either my ass sweats more than my other body parts, or there must be some weird kind of windchill vortex going on back there.