“If I can do it, what’s your excuse?” That’s the message Aaron Vnuk, owner of Blind Faith CrossFit, shares with members at ...

In “The Glass Box,” Calum Marsh chronicles the rise and fall of a fitness empire. By Karen Valby Karen Valby’s latest book is ...

Glassman’s lifestyle included expensive travel, lavish hotel stays, affairs and corporate expenses that ran into hundreds of ...

This exclusive excerpt from ‘The Glass Box’ documents the early days of CrossFit—and its conflicts.

Much like Dungeons and Dragons, Renaissance faires, and sex parties, CrossFit is something that everyone has heard of — but few have an accurate understanding of what it entails and who it's for.

Hyrox has become a global success story but despite recent turmoil, the company's founders want to expand. Burak Basturk / Middle East Images / AFP via Getty Images It is already a ...