Every week, NBC Montana brings you a "Marathon Minute,” where we offer tips on marathon training ahead of July’s Missoula Marathon.
This week, we talked to exercise metabolism expert Brent Ruby about the dangers of overheating during the race.
“People don't die on a marathon course due to dehydration,” says Ruby. “They die because they're working too hard in that environment, and they can't offload the heat fast enough.
A lot of people think that, to get ready for the marathon and to get ready for the warmer environments, they need to spend some time in the heat. That's certainly true, but don't think that, just because you're overheating or you're heating up, you're getting a better workout. That's not a good indication. The main misconception is that people think they can drink their way out of danger, and that is certainly not the case.
It's very important that an individual reels back their work intensity or their exercise intensity or their pace in that heat environment, rather than trying to drink themselves to safety."