Either the title here is wrong, or the link is wrong -- not sure which? The "Training Makes Runners More Efficient, but Not Cyclists" is here: https://www.outsideonline.com/2301366/training-makes-runners...

(btw, I hate sites that do this: change the URL as you scroll, so it's really one long site instead of separate pages. Grr.)

I think the article the original link points to "The Psychological Side of Heat Exhaustion" is pretty interesting, too, though.