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

In a nutshell, the 30-30-30 is a workout and nutrition split that ... has been around for fifteen years and was a key idea in Timothy Ferriss’ book, The 4-Hour Body. An author, entrepreneur ...

An curved arrow pointing right. Tim Ferriss, author of "The 4-Hour Workweek" and "Tribe of Mentors," is a firm believer in ketogenic diets and fasting. Here's why he believes so firmly in it.