Weight Lifting Is a Waste of Time

"The X3 (concept described in this book) is a great addition to our program. It is joint-friendly, and the variable resistance with a diminishing range of motion is a game changer. We have not been able to duplicate it with any other equipment. With the crazy NBA travel, it makes for great workouts on the road as well."

— Bill Foran

Strength and Conditioning Coach for the Miami HEAT. USA Strength and Conditioning Hall of Fame

"I admit I was skeptical of the system in this book. I'm a convert now. I use it like 2x or 3x a week, and only for like 10 minutes in the morning. I've put on at least 4 pounds of muscle and was already in great shape. I even quit my gym. I save a few hours a day and a few thousand dollars a year and get better results."

— Tucker Max

4x New York Times bestselling author

"Musculoskeletal health is vital to disease prevention, function, and longevity. Resistance training with heavy loads is one of the most effective ways to build and preserve our vital lean muscle mass. The X3 bar (discussed in this book) is a highly effective, time and equipment-efficient way to safely produce the necessary loads with the added benefit of variable resistance to further stimulate aggressive muscle growth further!"

— Shawn Baker, MD

Orthopedic Surgeon, CEO MeatRx.com, Author of “The Carnivore Diet,” Multi-Sport World Champion, & X3 Bar user

"After seven orthopedic surgeries, lifting conventional weights just wasn’t an option for me any longer. Fortunately, I met Dr. Jaquish, whose discoveries have allowed me to maintain size and strength without any damage to my joints."

— Forrest Griffin

Lt Heavyweight Champion & MMA Hall of Fame

"Dr. Jaquish's new book lays out the most interesting research and discoveries he uncovered during his process of creating what I consider to be some very smart and innovative fitness tools. He highlights key takeaways about optimizing human physiology through physical interventions, and I would consider it to be a fascinating and illuminating read with good, actionable insights for anyone interested in improving their health and fitness."

— Ben Greenfield

New York Times bestselling author. Host of one of the world's top fitness podcasts

"In a systematic, evidence-based way, Dr. Jaquish has completely changed my understanding of the physiologic effects of exercise, the benefits of variable resistance, and the profound impact of intermittent fasting. Through his guidance, I have created a personal framework for sustainable health, wellness, and longevity that I’ve passed on to many of my colleagues and patients."

— Raghav Tadepalli, MD

Board Certified Anesthesiologist. Assistant Chief of Service, Anesthesiology. Kaiser Permanente Riverside Medical Center