In the relentless pursuit of athletic advantage, a surprisingly simple method is gaining prominence among elite competitors and everyday fitness enthusiasts alike: breathing, or more specifically, not ...

If you want to toughen up, you could take extreme measures, such as sitting in an ice bath or sauna for increasingly long times. Or you could just go for a run, suggests new Australian research.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ST. LOUIS – Tim Ezell travels to 21C Hotel ...