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%
Elite VO₂ max is associated with up to 80% lower risk of early death.¹
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Over 70% of men are not metabolically healthy—even when standard labs appear normal.²
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Men with low muscle strength have a 60% higher risk of early death.³
15 years practicing Emergency Medicine taught me this: performance in your 90s and 100s is built decades earlier.
Instead of waiting for disease, we measure the variables that quietly determine how you age and perform years later—cardiovascular risk, metabolic health, inflammation, visceral fat, and cardiorespiratory capacity. We act early while trajectory can still be changed.
I built this system for myself first—because I refuse to spend the last decades of my life in decline. The system I built became Eternaal Health—to help other men do the same.
If you want to perform like the top tier for your age, you need a system designed for the top tier.
Joseph A. MacLellan, PA-C
15+ years Emergency Medicine · Dual Masters in Exercise Physiology and Medicine,
Founder, Eternaal Health
Decline starts long before symptoms
Standard medicine looks for disease.
Eternaal looks for decline—early enough to change the outcome.
We track the few signals that predict performance now and capacity later.
You Stay in Control. We manage the Trajectory.
THE CORE 4
Performance & Longevity Medicine
The basics slow decline. We build margin.
Diet
Sleep
Train
Mission
Test, Track & Improve.
Measure what matters.
Improve what moves the needle.
Eternaal Health exists to help men stay capable, resilient, and functional for decades longer—by design, not by chance.
Testimonials
"This isn't about treating problems. It's about seeing trajectory early and correcting it before it matters."
— Neil P. Physician
⭐⭐⭐⭐⭐
Testimonials
“My labs were always ‘normal,’ but I knew something was missing. I finally feel like I understand what matters."
48 E- Goal - Longevity
⭐⭐⭐⭐⭐
Testimonials
“Everyone should do this!
This is what modern medicine should have been all along—prevention, performance, and preserving capacity as you age.”
Mike K.
⭐⭐⭐⭐⭐
REFERENCES
1. Myers J, McAuley P, Lavie CJ, Despres JP, Arena R, Franklin B. Physical activity and cardiorespiratory fitness as major markers of cardiovascular risk: their independent and interwoven importance to health status. Prog Cardiovasc Dis. 2015;57(4):306-314. doi:10.1016/j.pcad.2014.09.011 2. Lustig RH, Schmidt LA, Brindis CD. The toxic truth about sugar. Nature. 2012;482(7383):27-29. doi:10.1038/482027a (Referencing NHANES data on metabolic health prevalence) 3. Gale CR, Martyn CN, Cooper C, Sayer AA. Grip strength, body composition, and mortality. Int J Epidemiol. 2007;36(1):228-235. doi:10.1093/ije/dyl224