It's way too stinkin' hot-n-humid here in NC for running outside (for me, I'm a sweat machine), but I did manage two 5K treadmill runs this week. The first one I felt slow and logy, like every muscle and joint was just dead. The second one, two days later, I felt like the Energizer Bunny. No idea why, but it was a great feeling!

Looking forward to fall runs outside!