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Fitness, Not Weight, Is the Best Marker of Health, Finds New Study

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Fitness, Not Weight, Is the Best Marker of Health, Finds New Study

We’ve long known that your weight isn’t necessarily linked to your health.

Firstly, because weight doesn’t indicate how much of you is muscle and how much is fat. Secondly, because weight doesn’t indicate what’s going on inside our body, like how much visceral fat we have (the type that sits around organs and can be problematic for health) or how well our heart, liver, gut, and other organs are working.

Yet, we’re never not being sold weight loss solutions. They pop up when we’re scrolling Instagram, are plastered all over train stations and are sometimes recommended by medical professionals.

Why, given there are so many other markers of health that are much more interesting and, importantly, useful for indicating our health? Well, that’s a big question. Instead, let’s look at a more practical question: what exactly are those better measurements for an insight into how healthy we are?

That’s exactly what a new study, published in the British Journal of Sports Medicine, looked at.

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The Study

The study, from researchers at the University of Virginia, was a systematic review and meta-analysis of research looking at whether cardiorespiratory fitness or body mass index (BMI) had a bigger effect on cardiovascular disease and all-cause mortality risk.

They were looking at this because obesity rates have increased significantly over the past four decades, with roughly two in five adults now classified as overweight or obese. With that, more people are at risk of cardiovascular disease and mortality.

Public health strategy tends to involve promoting weight loss to increase health outcomes for these people. The problem? Many regain weight within 10 years, and intentional weight loss alone has not consistently shown improvements in mortality risk.

One thing that has been proven to reduce the risk of cardiovascular disease and death is being fit – so much so that the authors of this study suggested it could be the fifth ‘vital sign’.

While studies have already been done comparing BMI to fitness before, a lot of them had issues with their methods. Researchers wanted to study the updated literature to find out once and for all what is the most important measurement of health.

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So, they analysed 20 articles, resulting in a total of 398,716 observations.

The Results

The biggest result from this study is that overweight-fit and obese-fit people had the same risk of all-cause mortality as normal weight-fit individuals. A closer deep dive into the stats shows:

  • Individuals were classified as fit if their exercise stress test score (which was either estimated or directly measured by VO2max) placed them above the 20th percentile within their age group.
  • Compared with normal weight-fit individuals, there was a two-fold increased risk of all-cause mortality in unfit people who were normal weight, overweight and obese.
  • Similarly, compared with normal weight-fit individuals, there was no greater
    risk for cardiovascular disease in fit people who were overweight or obese.
  • Unfit people who were normal weight, overweight and obese had a 2-3 fold increased risk of cardiovascular disease.

What That Means For Us

Being fit is protective against cardiovascular disease and dying, regardless of your body weight and BMI.

Read that again and again.

If you need to hear it from a scientist, Siddhartha Angadi, associate professor of exercise physiology at the University of Virginia School of Education and Human Development and corresponding author of the study says: ‘Exercise is more than just a way to expend calories. It is excellent “medicine” to optimise overall health and can largely reduce the risk of cardiovascular disease and all-cause death for people of all sizes.’

The focus should be moving more, regardless of your BMI, and without the arbitrary goal of ‘weight loss’. ‘The largest reduction in all-cause and cardiovascular disease mortality risk occurs when completely sedentary individuals increase their physical activity modestly,’ says Angadi.

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And if you need another reason to find movement you love and do it regularly for your health, rather than focusing on your weight, they add: ‘Repetitive cycles of losing and gaining weight – yo-yo dieting – is associated with numerous health risks comparable to those of obesity itself. Improving cardiorespiratory fitness may help avoid the adverse health effects associated with chronic yo-yo dieting.’

The Bottom Line

Set goals that improve your fitness, whether that’s Couch25K, signing up to a new gym or training for a race, rather than ones that centre weight.


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Now I’m hitting my third trimester of pregnancy—and as my energy levels have dropped—I’ve pressed pause on working out, but I’m still doing the same set of stretches to stay mobile and limber.

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NorthStar Advanced Exercise Science Expands Autonomy v2 Licensing Model for Chiropractic and Wellness Centers

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NorthStar Advanced Exercise Science Expands Autonomy v2 Licensing Model for Chiropractic and Wellness Centers

NorthStar launches Autonomy v2, a cloud-based system for science-driven fitness and business growth.

Irvine, California – November 02, 2025 – NorthStar Advanced Exercise Science has announced the expansion of its Autonomy v2 licensing model, introducing a comprehensive framework for chiropractic and wellness centers seeking to integrate premium fitness services into their practice. The new release includes a Business Handbook and an Intuitive Revenue Worksheet, designed to guide professionals through every phase of licensing and implementation.

Autonomy v2, NorthStar’s flagship cloud-based exercise science system, combines research-driven programming with an adaptable business model that aligns with clinical operations. Using Google Drive and Google Docs for secure program distribution allows wellness centers to deliver structured, science-based strength and conditioning programs without the overhead or complexity of traditional fitness management platforms.

“The new licensing materials make the transition simple and transparent,” said Vanessa Rowe, Sales Director at NorthStar Advanced Exercise Science. “Chiropractors and wellness professionals can now evaluate projected revenue, understand program structure, and begin integrating Autonomy v2 into their service offerings within days.”

The Autonomy v2 Business Handbook outlines operational procedures, revenue structures, and client-facing program models that enable wellness facilities to expand their services while maintaining compliance and clinical credibility. The Business Revenue Worksheet gives potential licensees a clear view of financial potential by mapping out realistic conversion rates, pricing tiers, and scalability options.

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Built on advanced exercise science, Autonomy v2 features proprietary sequencing and pathway-based training models derived from NorthStar’s research in adaptive kinesiology and exercise physiology. Each program is delivered with detailed session manuals and integrated progression systems, providing an intelligent blend of autonomy and professional oversight.

For wellness businesses, the system presents an immediate opportunity to add a new premium revenue stream by offering scientifically validated fitness services directly through their practice. The licensing model is structured to support both single-facility operations and multi-location scalability, with NorthStar providing complete digital setup and support via its cloud infrastructure.

NorthStar continues to expand its ecosystem of professional resources through its digital platforms, ensuring licensees have access to up-to-date documentation, analytics, and consult support. Interested wellness professionals can learn more or begin the licensing process by visiting

www.autonomyv2.com or www.northstar-central.com

About NorthStar Advanced Exercise Science

NorthStar Advanced Exercise Science (NorthStar AES) develops cloud-based fitness and wellness systems that merge physiology, biomechanics, and data analytics into scalable, research-driven programming. Through its flagship platform Autonomy v2, NorthStar equips gyms, chiropractic offices, and wellness centers with advanced exercise science solutions designed to elevate service quality and revenue potential.

For additional information or media inquiries, please contact:

Marketing and Communications Department

George Pierce george@northstar-central.com

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www.northstar-central.com | www.autonomyv2.com

Press Contact

Name: George Pierce

Title: Director of Marketing & Communications

Company: NorthStar Advanced Exercise Science, LLC

Email: george@northstar-central.com

Phone: (800) 878-9438 ext. 6

Company Address

NorthStar Advanced Exercise Science, LLC

4000 Barranca Parkway, Suite 250

Irvine, CA 92604

Main: (800) 878-9438

SMS/MMS: (949) 687-1297

NorthStar Advanced Exercise Science (NorthStar AES) develops cloud-based exercise science systems that combine physiology, biomechanics, and data analytics to create structured, scalable fitness solutions. The company’s flagship platform, Autonomy v2, provides wellness and chiropractic professionals with a premium, research-driven fitness system that integrates seamlessly into existing clinical operations.

Headquartered in Irvine, California, NorthStar AES supports gyms, wellness centers, and healthcare providers throughout the United States by delivering advanced programming, licensing support, and digital infrastructure via its Google Cloud-based network.

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Learn more at www.northstar-central.com and www.autonomyv2.com

This release was published on openPR.

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