In May 2025, I shipped a blood kit to TruDiagnostic in Lexington, Kentucky. Six weeks later, I received a 47-page PDF.
The headline on page two was reassuring: OMICm Age 24.5 at chronological 30. I was biologically 5.5 years younger than my passport said. DunedinPACE 0.9 — aging slower than the average person my age.
If I'd stopped reading there, I would have closed the PDF and told myself I was doing fine.
Then I scrolled to the eleven organ systems breakdown. And the test stopped being reassuring.
Your DNA doesn't change much over your lifetime. But the chemical marks on your DNA — called methylation tags — change constantly, and they change in predictable patterns as you age.
Scientists have mapped these patterns across hundreds of thousands of people. From them, they built mathematical models called epigenetic clocks: algorithms that read a snapshot of your methylation patterns and estimate how biologically old you are.
The clocks aren't measuring how you feel. They're measuring chemical evidence of cellular aging — how much oxidative damage, inflammation, and senescent cell accumulation has left its mark in your DNA.
There are several validated clocks. The TruDiagnostic Advanced TruAge panel I ran computes multiple from a single blood draw:
- OMICm Age (developed with Harvard) — composite biological age across multi-omic markers
- Symphony Age (developed with Yale) — biological age weighted by 133 organ-specific clinical biomarkers, broken into 11 distinct organ systems
- DunedinPACE (developed with Duke) — rate of aging. 1.0 = average. Mine was 0.9, slightly slower than average
What I didn't realize before running it: the most useful number wasn't the composite. It was the eleven organ-system breakdown.
I'll share the numbers because vagueness defeats the purpose. These are exact values from TruDiagnostic Sample ID SL5U5EK, blood collected 05/02/2025.
Biological age composite:
| Metric | My result | Reference |
|---|---|---|
| Chronological age | 30 | — |
| OMICm Age | 24.5 | 5.5 years younger than chronological |
| Symphony Age | 29.5 | 0.5 years younger than chronological |
| DunedinPACE | 0.9 | <1.0 = slower than average aging |
| Telomere Biological Age | 41.7 | older, but mostly genetic per disclaimer |
These numbers looked fine. The story was in the next table.
Symphony Age — 11 organ systems breakdown:
| Organ system | Biological age | Δ vs chronological 30 |
|---|---|---|
| Musculoskeletal | 17.3 | −12.7 ✓ younger |
| Immune | 23.7 | −6.3 ✓ younger |
| Kidney | 26.7 | −3.3 ✓ younger |
| Heart | 27.1 | −2.9 ✓ younger |
| Inflammation | 28.0 | −2.0 ✓ younger |
| Lung | 28.9 | −1.1 ✓ younger |
| Brain | 31.2 | +1.2 older ⚠ |
| Blood | 32.1 | +2.1 older ⚠ |
| Metabolic | 34.3 | +4.3 older ⚠ |
| Liver | 34.9 | +4.9 older ⚠ |
| Hormone | 38.7 | +8.7 older ⚠ largest gap |
This is the part that changed everything for me.
If I'd only looked at composite, I'd have walked away thinking the protocol I was running was working great. But the breakdown showed me the systems that had aged were exactly the ones a high-performer's lifestyle stresses — Hormone, Liver, Metabolic, Blood, Brain. The systems with the most rest (Musculoskeletal, Immune) were the youngest.
The lesson: composite biological age can hide the things you most need to know.
Beyond the organ-age breakdown, the test reports out individual epigenetic biomarkers as percentile rankings against a same-age, same-sex reference cohort.
The ones that flagged HIGH (above the 80th percentile — actionable):
- Fasting Glucose: 87th percentile — biggest practical finding
- LDL-C: 95th
- VLDL-C: 96th
- Total triglycerides: 89th
- PUFA: 99th (the highest single reading)
- Mimecan (bone/cardiovascular): 98th
- Matrix-remodeling protein 5: 93rd
- Neurogranin (memory health): 93rd
- 2PY (NAD recycling inefficiency): 96th
- Phenylacetylglutamine: 83rd
The ones that flagged LOW (out of range — also actionable):
- White Blood Cell Count: 1st percentile (critically low)
- Kynurenine (chronic stress marker): 1st percentile (critically low)
- Vitamin D: 10th
- Tyrosine: 4th
- Histidine: 5th
- CD4/CD8 Ratio: 5th
- TGF-beta: 8th
- MPO (oxidative defense): 0th
And the TruHealth category scores:
| Category | Score | Status |
|---|---|---|
| Mitochondrial Function | 26% | suboptimal (lowest) |
| Toxins | 30% | suboptimal |
| Metabolic Markers | 33% | suboptimal |
| Stress Markers | 35% | suboptimal |
| Immune Markers | 40% | suboptimal |
| Vitamins | 76% | normal |
This is the panel that changed how I think about the test. None of these individual markers would have shown up as a "problem" on a standard physical. But the pattern — the high-performer metabolic markers elevated, the chronic stress kynurenine critically depleted, the white blood cells critically low — was specific.
Ready to experience data-driven longevity?
Book a Discovery Call →The hardest part of getting this test wasn't receiving the results. It was the realization that the damage was invisible everywhere else.
I wasn't sick. I looked fine. I was performing fine. By every external measure, I was a functional, high-achieving person who'd just had a hotel business go through public collapse but was, at least biologically, "younger than average."
That last part was the trap. The composite reassured. The breakdown surfaced what the composite hid.
That's what the test is for — not to diagnose disease, but to measure trajectory across systems. Where is stress accumulating? Which organ systems are paying the cost? What specific biomarkers tell me where to intervene?
That's a fundamentally different question than "am I healthy?"
I made a protocol. Not because I panicked — because I had data.
The protocol has four components, each targeting a different driver:
Hormone-axis recovery — the +8.7 year gap was the largest. Sleep architecture, cortisol normalization, environmental work. Berlin (where I moved that summer) helped enormously. The Whoop HRV data has gone from a 35ms average to trending toward 50ms.
Metabolic reset — the glucose/LDL/triglyceride/PUFA cluster. Whole-food approach, reducing processed-fat sources (the PUFA 99th percentile finding pointed directly at something specific), CGM planned for the next phase.
Nervous system / chronic stress — Nurosym daily, cold exposure, breathwork. The kynurenine at 1st percentile said the stress system needed direct intervention, not just "rest more."
Targeted supplementation — Vitamin D (10th percentile), B vitamins, omega-3 (already at 73-88th percentile, maintenance dose).
The May 2026 retest is happening soon. That's the second timepoint — the one that will give me real before/after data.
I'll publish the full retest report when it lands. If the protocol moved the markers, I'll show the data. If it didn't, I'll show that too.
That's the only honest version of this story.
If you're a founder or executive who's been running hard for 2+ years without measuring your biology, the answer is yes.
Not because something is definitely wrong. But because the composite biological age you'll see might tell you you're fine when the organ-system breakdown tells a more specific story. That's the value.
The TruDiagnostic Advanced TruAge + TruHealth panels cost ~$500 combined. Finger-prick blood spot you mail in. Results in 6 weeks.
Every KINS guest begins with this test on arrival. The 14-day protocol is built around the specific organ-system + biomarker breakdown it reveals. The departure test shows what moved.
That's what accountability looks like when the stakes are your cells.
— Cathy