Understanding your biomarkers is the foundation of evidence-based longevity. Unlike symptoms — which appear only after damage has accumulated — biomarkers reveal the trajectory of your health years before clinical disease manifests. The difference between standard reference ranges and longevity-optimal targets is profound: a fasting glucose of 99 mg/dL is "normal" by clinical standards but already reflects insulin resistance by longevity medicine standards.
This category covers every biomarker that matters for healthspan optimization. From foundational markers like ApoB, fasting insulin, and hsCRP to advanced testing like coronary artery calcium scoring, CIMT, and continuous glucose monitoring, each article explains what the test measures, why it matters for aging, what the longevity-optimal ranges are (not just the standard reference ranges), and what to do if your results are suboptimal. We also cover the practical side: which tests to order, how frequently to retest, and how to interpret your results without a longevity physician.