Guide topic
Longevity Bloodwork
Plain-English, source-cited guides to the markers longevity-minded people track.
Guide
The longevity blood panel: which markers and why
ApoB, Lp(a), hsCRP, HbA1c and the rest — what each one measures, and the published targets named authors cite.
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Guide
Optimal vs. reference ranges
Why your lab’s “normal” range describes the population, not your longevity target.
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Guide
ApoB vs. LDL cholesterol
LDL-C weighs the cargo; ApoB counts the particles. Why they disagree, and the targets named authors cite.
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Guide
How often should you retest your bloodwork?
Every marker moves on its own timescale — why HbA1c, ApoB, Lp(a) and vitamin D each have different retest windows.
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The app for this
Marker: Longevity Bloodwork
Log your panel — ApoB, Lp(a), hsCRP, HbA1c, fasting glucose and insulin, triglycerides, total and HDL/LDL cholesterol — and Marker shows each value against cited optimal ranges, with trends over time. An educational log, not medical advice. No subscription, no ads, works offline.