When you buy through links on our articles, Future and its syndication partners may earn a commission. We speak to an endurance expert on using cutting edge science to monitor your core body ...

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 ...

At least, that’s how Mads Pedersen described it on the eve of his rampage across the opening week of the Giro d’Italia. But why are Pedersen, Tadej Pogačar, Remco Evenepoel and scores more pros riding ...

Heat stress happens when your body starts having problems regulating internal temperature due to high external temperatures. It may lead to heat-related illnesses like heat exhaustion and heatstroke.