Prepping for high temps aside, heat training can trigger the release of extra EPO (yes, that EPO) and boost red blood cells.

Add Yahoo as a preferred source to see more of our stories on Google. You’ll sweat more to help cool you down when you exercise in the heat, but that also means you’ll lose more water and minerals.

After a few pleasant hours sitting in the sun watching the Prefontaine Classic in Eugene, Oregon last spring, I headed down into the bowels of Hayward Field for a grueling test for running in the heat ...

My high school cross-country coach used to tell me to go run when it’s blisteringly hot. I said no. But now I wish that I would have run in June and July. Recent research reveals that running in hot, ...