Your biological age is a canvas, not a cage. What if your bloodwork proves you’re younger than your birth year—or unveils a clear path to reverse decades of wear? Functional medicine testing uncovers your body’s actual aging rate through biomarkers, enabling customized longevity tactics to surpass chronological years.
Chronological age counts time since birth. It remains constant.
Biological age measures how well your body is functioning and reflects the physiological state of your cells, tissues, and organs and organ performance. It fluctuates with lifestyle habits.
Functional medicine uses this contrast to prolong healthspan—the number of years lived in good health and free from chronic disease. Lower biological age supports a longer healthspan and a reduced risk of chronological age-related illnesses.
1. Test Your Biological Age
Functional medicine depends on trustworthy biomarkers. Pick a test that matches your longevity priorities. Here are 3 of the best:
1/ Function Health: 100+ tests with biological age from blood markers; complete at Quest Diagnostics labs across the United States.
2/TruDiagnostic TruAge: Kits assess biological age and DunedinPACE (aging speed) through blood spot. Recent 2025 multi omic clocks integrate epigenetics—the way your behaviours and environment can affect the way your genes work.
3/Fountain Life: Uses advanced diagnostics to catch disease at the earliest signs. Epigenetic biological age via DNA methylation, combining methylation, telomere length, and biomarkers for organ specific ages.
2. Understand the Gap: Chronological Years vs Biological Reality
Chronological age sets a fixed reference.
Biological age tracks how your cells hold up—through DNA health, telomere wear and body signals—showing your true aging rate.
One biological year per chronological year is the gold standard; exceeding 1.2x accelerates mitochondrial dysfunction and insulin resistance, doubling midlife health risks.
Positive Fact: Eighty percent of people reclaim 2–5 biological years minimum, by addressing core issues; shedding fatigue + reversing the aging clock.
The Bottom Line
Aging is a choice. We now have access to converging technologies such as AI, genomics, CRISPR, gene therapy, cellular medicine and sensors that pinpoint the root cause of disease, so you can reverse it.
I put these longevity principles to the test this year with Function Health’s comprehensive biomarker analysis. My biological age came in at 23.9 years—well below my chronological age.
Function Health highlighted key areas for improvement, including sleep consistency and omega-3 levels. Here’s what I did:
- Stuck to a strict 10 PM bedtime to stabilize my circadian rhythm.
- Incorporated algae oil for high EPA and DHA content, supporting cellular health without fish-based sources. Did you know-fish contain EPA + DHA due to the algae they eat 👀.
Three months later, I retested. My biological age dropped another full year, and my daily energy levels surged, making workouts and work feel effortless. Small, evidence-based tweaks like these can reshape your health trajectory.
Start Here 🏆
- Obtain baseline biological age through functional medicine tests.
- Recognize drivers e.g. inflammation or sleep shortages.
- Perform longevity routines such as tailored nutrition.
- Retest every 6-12 months to assess healthspan enhancements.
FAQ
How does biological age differ from chronological age? Biological age evaluates cellular health via biomarkers, directing functional medicine to improve healthspan, unlike chronological age that merely tallies years.
What is a multi omic clock? A multi-omic clock is a sophisticated biological aging assessment tool that integrates data from multiple layers of biological information—such as DNA methylation, blood biomarkers, gut microbiome composition, proteomics, metabolomics, and other clinical measures—to provide a more comprehensive and accurate estimate of an individual’s biological age.
Why monitor biological age for longevity? It reveals aging accelerators early, permitting tactics that extend healthspan years.
Can habits reduce biological age? Yes, research confirms exercise and diet modifications lower markers.
What is DunedinPACE? A DNA methylation measure for aging speed, available in TruDiagnostic kits to evaluate short term healthspan impacts.
How frequently test biological age? Every 6 to 12 months to refine longevity methods.
Your biological age shifts. Which hidden marker unlocks your youth?
Grow young with us!
Love, Marie
