Book
Ferriss T. The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman. New York: Crown Archetype; 2010. 592 p.
Why we cite it
A self-experimentation guide emphasising measurement and tracking as the foundation for body composition change. Relevant to the progress photos companion (364): Ferriss advocates systematic body measurement (photos, tape measurements, body fat percentage) over scale weight alone, arguing that objective visual and dimensional data motivates more effectively than weight numbers.
About the author
Timothy Ferriss holds a BA from Princeton University (2000, East Asian Studies). Author of five New York Times bestselling books including The 4-Hour Workweek (2007), The 4-Hour Body (2010), The 4-Hour Chef (2012), Tools of Titans (2016), and Tribe of Mentors (2017). Host of The Tim Ferriss Show podcast. Angel investor and advisor to companies including Uber, Facebook, and Shopify. Not a scientist or health professional — the book is based on self-experimentation and interviews, not peer-reviewed research.
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