The Pursuit of Ultimate Longevity

Your Health, Taken to Another Level.

Eternaal Health bridges the gap between routine care and peak vitality. We use proven longevity markers—VO₂ max, metabolic health, inflammation, cardiovascular risk, and epigenetics—to build your personalized roadmap

New!

Longevity Scorecard

Build Your Blueprint

80%

Elite VO₂ max slashes your risk of death by 80%¹

25%

Genetics only accounts for only 25% of lifespan; the rest is modifiable.²³⁴

45%

Up to 45% of cancers are preventable with modifiable behaviors.⁵

OUR FOUNDER

After 15 years practicing emergency medicine, I saw what happens when we wait. I built Eternaal Health because I wanted the system I couldn’t find: Celebrity and executive level diagnostics plus a practical plan that actually changes outcomes. I started with my own genetics and epigenetics, VO₂ max, DEXA, CGM, advanced longevity labs (not ordered by PCP), then changed my life using the results. Now I help patients do the same: measure what matters, act on it, and keep improving. I help people build a sustainable long-term plan to live longer-stronger.

About Us

Joseph A. MacLellan M.S., M.A.,

ABAAHP, PA-C, Author, Founder

THE CORE 4

Prevention & Longevity Based Practice

Diet

Sleep

Exercise

Connection

DISCOVER YOUR OPTIMAL HEALTH

Test, Track & Improve.

At Eternaal Health, we believe personalized health starts with data. Through our three-tiered testing programs, we help you uncover what’s really going on inside your body—your genetics, metabolism, biological age, inflammation, and more.

TESTIMONIALS

What Clients are Saying about Us.

“My labs always came back ‘normal’ with my primary care doctor, but I knew something was missing. This program goes beyond basic labs. It’s advanced, preventative care. With deeper testing and personalized guidance, I’ve lost 15 pounds, my energy is higher than ever, and my nutrition, training, and daily habits have all been fine-tuned.

Emily F. - 48, Goal - Longevity

REFERENCES

Mandsager K, Harb S, Cremer P, et al. Association of cardiorespiratory fitness with long-term mortality among adults undergoing exercise treadmill testing. JAMA Netw Open. 2018;1(6):e183605. doi:10.1001/jamanetworkopen.2018.3605 MedlinePlus Genetics. Is longevity determined by genetics? National Library of Medicine. Updated July 11, 2022. https://medlineplus.gov/genetics/understanding/traits/longevity/ Sebastiani P, Perls TT. Human longevity: Genetics or lifestyle? It takes two to tango. Curr Genomics. 2016;17(4):349-361. doi:10.2174/1389202917666160426143146 Herskind AM, McGue M, Holm NV, Sørensen TIA, Harvald B, Vaupel JW. The heritability of human longevity: A population-based study of 2872 Danish twin pairs born 1870–1900. Hum Genet. 1996;97(3):319-323. doi:10.1007/BF02185763 Islami F, Goding Sauer A, Miller KD, et al. Proportion and number of cancer cases and deaths attributable to potentially modifiable risk factors in the United States. CA Cancer J Clin. 2018;68(1):31-54. doi:10.3322/caac.21440