(Outside) Author (“4-Hour Workweek”, “4-Hour Body”) Tim Ferris has interviewed more than 100 athletes, experts, and celebrities and put together a collection of their best actionable tools and tactics on how to improve fitness and wellbeing. And it wouldn’t be Tim Ferris if he hadn’t tried out everything himself. In this insightful article, he previews his new book and describes some of the routines and tricks he has learned. Have you ever heard of AcroYoga? Read his article.