My doctor told me my bloodwork was "perfect." Three weeks later, I ran my own panel. My ApoB was 118 mg/dL — firmly in the cardiovascular risk zone. My fasting insulin was 11.2 µIU/mL, more than double what longevity physicians consider optimal.
Everything was "fine." Nothing was optimal. That gap might be the most dangerous thing in preventive medicine.
The Data
ApoB — the single best predictor of cardiovascular events. A 2021 JAMA Cardiology meta-analysis confirmed it's superior to LDL-C. Lab "normal": <130 mg/dL. Longevity target: <60 mg/dL
Fasting insulin — rises a full decade before glucose goes out of range. Optimal: <5 µIU/mL. Lab range goes up to 25
hsCRP — systemic inflammation marker. Optimal: <0.5 mg/L. Standard "normal": <3.0 mg/L — a 6x gap
Lp(a) — genetically determined cardiovascular risk factor affecting 20% of people. Test it once. Most doctors never order it
HbA1c — longevity physicians target <5.0%, not the standard <5.7%
Vitamin D (25-OH) — Endocrine Society recommends 40-60 ng/mL, not the lab's 30 ng/mL cutoff
The reference ranges on your lab results aren't health targets — they're statistical averages from a population that's 88% metabolically unhealthy (UNC, JACC, 2022).
What To Do
Get ApoB tested. It's cheap, widely available, and the single best predictor of your cardiovascular future. If your doctor won't order it, order it yourself.
Add fasting insulin. A fasting glucose of 95 with a fasting insulin of 15 is not "normal" — it's a pancreas compensating for insulin resistance that's already underway.
Request a full thyroid panel. TSH alone misses subclinical hypothyroidism. You need free T3, free T4, and thyroid antibodies. Optimal TSH: 1.0-2.0, not the 0.5-4.5 reference range.
Test every 6-12 months. Quarterly if actively optimizing. Trends matter more than single readings.
Product Pick
Peter Attia's Outlive breaks down the entire "Medicine 3.0" framework — why standard care misses these markers and what optimal ranges actually look like. It's the best $18 you'll spend on understanding your bloodwork.
Quick Hit
Homocysteine above 7 µmol/L? The fix is usually simple: methylated B vitamins (methylfolate + methylcobalamin + P5P). A 2002 JAMA meta-analysis found that a 25% reduction in homocysteine was associated with 11% lower heart disease risk and 19% lower stroke risk.
Your doctor sees "normal" and shakes your hand. A longevity physician sees the same numbers and starts investigating. The difference is the reference ranges they're using — and the questions they're asking.
When was the last time you looked at your actual numbers, not just the normal/abnormal flags? Hit reply and tell me.