For decades, elite runners have traveled the world to train at high altitude. When oxygen levels in the air are low, the body ...

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Running in the heat is never fun, but this year I was determined to make the best of it. Starting in the spring, I used a Core 2 sensor to track my heat exposure; I later added a Garmin Forerunner 570 ...

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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 ...

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