The 4-Hour Body- An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman

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Thinner, bigger, faster, stronger... which 150 pages will you read?Is it possible to:Reach your genetic potential in 6 months?Sleep 2 hours per day and perform better than on 8 hours?Lose more fat than a marathoner by bingeing?Indeed, and much mor...
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Thinner, bigger, faster, stronger... which 150 pages will you read?

Is it possible to:
Reach your genetic potential in 6 months?
Sleep 2 hours per day and perform better than on 8 hours?
Lose more fat than a marathoner by bingeing?

Indeed, and much more. This is not just another diet and fitness book.

The 4-Hour Body is the result of an obsessive quest, spanning more than a decade, to hack the human body. It contains the collective wisdom of hundreds of elite athletes, dozens of MDs, and thousands of hours of jaw-dropping personal experimentation. From Olympic training centers to black-market laboratories, from Silicon Valley to South Africa, Tim Ferriss, the #1 New York Times bestselling author of The 4-Hour Workweek, fixated on one life-changing question: 

For all things physical, what are the tiniest changes that produce the biggest results?

Thousands of tests later, this book contains the answers for both men and women. From the gym to the bedroom, it’s all here, and it all works.

You Will Learn (in less than 30 minutes each):
* How to lose those last 5-10 pounds (or 100+ pounds) with odd combinations of food and safe chemical cocktails. 
* How to prevent fat gain while bingeing (X-mas, holidays, weekends) 
* How to increase fat-loss 300% with a few bags of ice 
* How Tim gained 34 pounds of muscle in 28 days, without steroids, and in four hours of total gym time 
* How to sleep 2 hours per day and feel fully rested 
* How to produce 15-minute female orgasms 
* How to triple testosterone and double sperm count
* How to go from running 5 kilometers to 50 kilometers in 12 weeks 
* How to reverse “permanent” injuries 
* How to add 150+ pounds to your lifts in 6 months 
* How to pay for a beach vacation with one hospital visit
And that's just the tip of the iceberg.  There are more than 50 topics covered, all with real-world experiments, many including more than 200 test subjects.

You don't need better genetics or more discipline. You need immediate results that compel you to continue.

That’s exactly what The 4-Hour Body delivers.

Product Details

Hardcover: 592 pages


    Editorial Reviews


    "Mr. Ferriss makes difficult things seem very easy." NY Times --This text refers to the Paperback edition.

    About the Author

    TIMOTHY FERRISS is a serial entrepreneur, #1 New York Times bestselling author, and angel investor/advisor (Facebook, Twitter, Evernote, Uber, and 20+ more).  Best known for his rapid-learning techniques, Tim's books -- The 4-Hour Workweek, The 4-Hour Body, and The 4-Hour Chef -- have been published in 30+ languages. The 4-Hour Workweek has spent seven years on The New York Times bestseller list. Tim has been featured by more than 100 media outlets including The New York Times, The Economist, TIME, Forbes, Fortune, Outside, NBC, CBS, ABC, Fox and CNN. He has guest lectured in entrepreneurship at Princeton University since 2003. His popular blog has 1M+ monthly readers, and his Twitter account @tferriss was selected by Mashable as one of only five “Must-Follow” accounts for entrepreneurs. Tim’s primetime TV show, The Tim Ferriss Experiment (, teaches rapid-learning techniques for helping viewers to produce seemingly superhuman results in minimum time.

    Most Helpful Customer Reviews

    7,041 of 7,581 people found the following review helpfulBy N. Watson on February 22, 2011
    Format: Hardcover Verified Purchase
    Most of the 5-star reviews for 4HB came up on the first day. Given that Tim Ferriss has previously endorsed outsourcing in his Four Hour Workweek, I wonder how many of those 5-star reviews were from his personal assistants abroad.

    Let me start with my bona fides: I am a currently practicing and licensed physician in the state of California. I graduated from Stanford University School of Medicine. I am a black belt and a lifelong athlete, and I have been weight training for over 20 years-- and unlike Mr. Ferriss, without injuring myself in any way, ever. I have no financial interest in his book or any other product discussed here.

    Regarding the depth of my review of The 4-Hour Body, I spent over [...] on the equipment, supplements, and ultrasound machine recommended in the book. I bought the BodyMetrix Professional ultrasound and software he recommends by Intelametrix ([...] after discount for mentioning 4HB book), and completed the 1-on-1 online training despite the fact I am previously certified in performing ultrasound. I engaged my friends and colleagues in a "Fat off" competition with obsessive and objective weight and body fat measurements and followed the routine for 5 weeks as perfectly as I was able. I also experimented (like Mr. Ferriss) using continuous glucose measurement (CGM) to assess minute-to-minute glucose responses to food and exercise using both the DexCom system he recommends as well as the MiniMed Guardian system. I plan to upload a photo of the nutritional supplements I bought, which nearly cover my kitchen table. I downloaded apps to my phone for recording each workout obsessively, and more importantly to help with the very slow rep time he recommends.

    My basic finding is that after trying the diet, supplements, exercise routines and lifestyle changes recommended in the 4-Hour Body that I found no change, whatsoever, in body weight or competition. Nor did any of my other friends trying the book.

    Why doesn't the 4HB work?

    (1) It takes more than 4 hours a month in the gym to have a great body. I'm sorry, it just does. Mr. Ferriss recommends performing 2-3 SETS, for a total of less than 30 reps, per WEEK, to get a great body. Ask any athlete, bodybuilder, trainer... not enough. Not even close. It's hogwash. I actually could feel my body dwindling despite eating as much protein as I could stomach.

    (2) Almost all the supplements recommended in 4HB have never been scientifically proven to do what Mr. Ferriss claims they do. Take cissus quadrangularis (page 110), costs about $30 for 120 capsules. He discusses that he took CQ in China while eating a high volume rice diet with sweets and states "CQ preserved my abs". Really? If that's the level of evidence that you're comfortable with, great. But with simultaneous exercise, multiple other ongoing supplements, lifestyle changes, etc., who can tell whether it was CQ or just dietary changes from his being in rural China?

    (3) The diet is just a mishmash of other diet routines, basically Atkins plus paleo with a dash of South Beach Diet. There are important flaws in the diet that should be pointed out. He recommends carbohydrates from beans instead of "white carbohydrates", hence the "slow-carb" diet. This relies on a bunch of old data regarding glycemic index. The reality about carbohydrate digestion is very different. Carbohydrate digestion is so important that it begins IN THE MOUTH with salivary amylase. Whether you eat a slice of Wonder Bread or a handful of garbanzo beans, the breakdown of these sugars into the body's currency of glucose is extremely rapid and effective regardless of which form you ingest it in. I have tried this myself using continuous glucose monitoring as recommended in the book. The only way I have found to blunt the sugar rise is simultaneous ingestion of a good quantity of fat. Also, can a diet really be paleo without milk or dairy? And did early Homo sapiens farm for beans and lentils?

    (4) The blood sugar response data in the book is flawed by a misunderstanding of how continuous blood glucose monitoring (CGM) works. He notes "it turned out foods and liquids took much, much longer to get to my bloodstream than one would expect." But the DexCom SEVEN implant he was using has a 20-30 minute delay between the blood sugar reading you get on a finger stick, and the blood sugar reading on the machine sensor. That is, there is a BUILT IN DELAY (check some online diabetic forums for more info on this) because capillary blood from fingersticks shows changes much faster and more accurately than the interstitial fluid surrounding the implant. So, as noted in (3), sugar responses are actually very fast. Drink that protein shake right before or after the workout, not 1 hour prior like he says.

    (5) Measuring body fat before and after interventions is much less easy than implied in the book. Body scans using DEXA are really great, but it's hard to convince all your friends to do it with you given inconvenience and expense. I have used the ultrasound unit he recommends and even with training it is very difficult for me to get reliable, repeatable data. This is true even when I have switched it to expert "M" mode and done my own curve fitting of the actual ultrasound output. It is also very dependent on the body type you select for yourself when you calibrate the machine.

    (6) The sex improvement section seems out of place in this book, and is not terribly original to boot.

    Here's what you can learn from 4HB without buying the book:
    ---Measure your body fat (!) before and after any change you make in your diet.
    ---If a book makes unrealistic claims, don't believe it.
    ---Have your friends join you in challenges and short contests.
    ---Exercise consistently over years...and be more careful with your body than Mr. Ferriss is.
    234 Comments  Was this review helpful to you?  YesNo
    2,402 of 2,623 people found the following review helpfulBy Momo on December 14, 2010
    Format: Hardcover Verified Purchase
    Pro: It has a lot of great information for people who are new to dieting and exercise.
    Easy to read. The split into different chapters you can read without having to read the whole book was a smart choice.
    Simple programs.

    Con: All the information isn't exactly new or just in this book. For example, the diet is Paleo, which is fine, but not what I expected from the ads. I really hoped for something new here, and what is new sounds dubious at best.
    Some of the claims in the books description are a little exaggerated.
    The work out is not the best. It's great if you are new to working out, but it's not enough for someone who is already athletic and looking to improve. If you want to be the best athlete you can, this will take you far but it will not get you there.
    Reversing permanent injuries can be expensive.

    I have a problem with his scientific method. He did a lot of these experiments only on himself, and one after another in a short period of time. His results might be skewed. I'm currently applying a few of his suggestions and have been for 2 weeks. I will update this review in the future if there is any radicle change, but as of now nothing has really happened.

    I also do not like that this book has gotten so many perfect reviews so quickly, and that critical reviews are being removed.

    All in all, the book is grand if you need to be introduced to the word of nutrition and exercise. But if you have read widely on the subjects already and looking for something different and radically new, this book doesn't really deliver.


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