Tim Ferriss became something of a guru in peak performance with the release of his bestselling book The 4-Hour Work Week ... traction towards the end of that workout," he explains.

Tim Ferriss, the author of "The 4-Hour Workweek" and "Tribe of Mentors ... riding on a Peloton bike and doing a 20-minute HIIT workout (high-intensity interval training), or it could be acroyoga ...

Bestselling author and star podcast host Tim Ferriss undergoes a ... through the lens of his hit book "The 4-Hour Workweek," experimenting with different workout regimens and diets based on ...