CrossFit | Efficacy
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The CrossFit stimulus—constantly varied high-intensity functional movement coupled with meat and vegetables, nuts and seeds, some fruit, little starch, and no sugar—prepares you for the demands of a healthy, functional, independent life and provides a hedge against chronic disease and incapacity. This stimulus is elegant in the mathematical sense of being marked by simplicity and efficacy. The proven elements of this broad, general, and inclusive fitness, in terms of both movement and nutrition, are what we term our CrossFit Essentials.

“I was on Wellbutrin for anxiety. I was on cholesterol medication … . I wasn’t getting any advice to work out. It was just, ‘Here’s another medicine,’” Bob Soulliere recalls. “The gift was that I got laid off.” With his newfound free time, Soulliere started taking CrossFit classes. “When I walked into CrossFit, no question, stress was managing me, and now I manage stress,” he says.

Watch Doctor Tells Bob Soulliere He’s “Doing All the Right Things”

From overweight to winning the Open: Years ago, Zack George embarked on a weight-loss journey with a new mindset. In 2020, he was the Fittest Man in the U.K. in the CrossFit Games Open.

WatchThe Gentle Giant

In 2010, Diane and Jim opened CrossFit Oyster Point in Newport News, Virginia, to help people improve their life and fitness.

Watch It Takes Two

A longtime member of CrossFit Cedar Park in Austin, Texas, Bowers says she turns to CrossFit when she finds herself falling back into the hole of depression.  

WatchOut of the Hole

"I think CrossFit helped Ali—in a time where you could feel like you’re in such despair—provide an outlet where you physically have to be strong."

WatchThe Great Escape

Sheila is 78 years old and probably more active than you. After suffering with chronic back pain for 57 years, she found CrossFit Cedar Park. “This is the first time in my life … that I have not had back pain,” she says. “I’m looking pretty good, I’m feeling good, and I’m staying younger,” she adds.

WatchNever Retired

Nick Decker weighed 270 pounds at 27 years old. Nicknamed “pudge” as a kid, Decker had numerous markers of chronic disease already in his early twenties. His a-ha moment came when he found himself out of breath while playing with his 10-month-old son. “I think sharing my experience is going to help people because I’m just a normal dude,” Decker says. 

Watch Measure of a Man

Jonathan Stoops was your typical American kid. He played football and lifted weights, but he was fat. During high school, he was diagnosed with diabetes. Jon had to take a medical leave of absence his first year of college. He kept treating his diabetes like it wasn't there, but over time it caused him more and more problems until he wound up in the hospital with pancreatitis. When he finally got serious about his health, Jon tried triathlons, but running was too painful. It wasn't until CrossFit that Jon finally turned his life around.

Watch Jonathan Stoops Beat Diabetes

Haley Morrone’s personal experiences taught her that many who struggle with their physical appearance or capabilities are dealing with trauma. “Everyone has a story,” she says. As an affiliate owner and CrossFit trainer, she has one goal: “I just want to be that hand reaching out for anybody who feels like they’re hopeless.”

Watch Haley Morrone: Finding Her Place

Nigel Barber was 16 years old when he broke his neck. He had to spend a year in the hospital learning how to adjust to his new life as a paraplegic. When he first joined CrossFit Pi, he sometimes would struggle even to sit up. But over time, the workouts strengthened his core and helped with that. He now feels less alone and like he’s part of a team because of the community at CrossFit Pi.

Watch Nigel Barber Finds His Piece of the Pi

Brittany Hoover was 8 years old when her dad noticed her back “didn’t look normal.” After undergoing surgery for sever scoliosis, Hoover was told she would never be able to play contact sports, do gymnastics, or perform any repetitive movements ever again. Now a CrossFit trainer and yoga instructor, Hoover is in less pain than ever, and she says she hopes to use CrossFit “to change people’s lives. … CrossFit changed my life.”

Watch Brittany Hoover: Comfortable Being Uncomfortable