Biomarker hub

The numbers that actually matter. It is not about how many biomarkers you test, it is about getting actual meaning from each one, and doing something about it.

• Preventive health in your 20s and 30s: what to measure before anything goes wrong Why the diseases that shorten lives are decades in the making, which numbers show the process while it is still reversible, and what changes if a parent or sibling was diagnosed young.
• Magnesium blood test: what your result actually means Less than 1% of your body's magnesium is in your blood. What a standard magnesium test captures, what it misses, and how to read yours.
• Biomarkers worth tracking for healthspan, not just lifespan Which numbers tell you how well the next decade is likely to go, and why a normal annual panel usually misses them.
• ApoB blood test: the number that beats LDL cholesterol Every atherogenic particle carries exactly one ApoB. Why counting particles predicts risk better than measuring the cholesterol inside them.
• hs-CRP: reading the inflammation marker correctly What high-sensitivity CRP measures, the three risk bands, and why a single high result usually means retest rather than panic.
• Fasting insulin, HOMA-IR and HbA1c: which one shows problems first Three markers of the same process, on very different timelines. Fasting insulin moves years before HbA1c does.
• Lp(a): the inherited risk marker most people are never tested for Largely genetic, mostly unaffected by diet and statins, and worth measuring once. What an elevated Lp(a) does and does not mean.
• IGF-1: what it says about your growth hormone axis Why IGF-1 is measured instead of growth hormone itself, why the range is age-specific, and why higher is not automatically better.
• Free vs total testosterone, and why SHBG decides the difference Total testosterone can look fine while free testosterone does not. How SHBG, timing and assay choice change the answer.
• VO2 max: what it measures and what it predicts The single best-studied measure of cardiorespiratory fitness, how it is actually tested, and what large cohorts show about it.
• Vitamin B12 blood test and MMA: when a normal B12 still leaves a question Why serum B12 has a gray zone, what methylmalonic acid adds, and the two common things linked to lower B12 status.
• What is eGFR? Why the trend matters more than one result eGFR estimates kidney filtration. A drop over two years carries information a single in-range value cannot.
• What is HRV? How to read heart rate variability as a trend What heart rate variability (HRV) measures, why single nights swing, what long-term studies link it to, and how training studies use a personal baseline.
• Visceral fat: why waist size can matter more than weight Visceral fat carries the strongest health risk of any fat depot. Waist circumference is its best simple proxy, and it can fall while weight holds.
• Metabolic biomarkers Foundational labs plus the early insulin-resistance signals most standard panels miss.
• Cardiovascular biomarkers Lipids, inflammation, and vascular risk markers interpreted together rather than in isolation.
• Hormonal biomarkers A comprehensive panel for testosterone, estrogen, adrenal, thyroid, and growth hormone signaling.
• Nutrition & B-Vitamin biomarkers B-vitamins, iron, omega-3 status, and intracellular micronutrient sufficiency.
• Biometric markers Wearable and body-composition data that often predicts risk before bloodwork changes.