Last Saturday I decided it would be fine to run 6 miles at 4pm (when it was 93 degrees) my running buddy said it would be too hot but I thought it would be an adventure.
Yeah it sucked. It took me almost an hour and 20 minutes!
I drank a ton of water and sweat like crazy, at the end of the run I had a nice tan line. Bonus?
Compare that to an 8 mile run at 8am yesterday morning. I ran it in less time, the sun was not blazing into my eyes...
...and I still got a tan line.