The five numbers that predict your next decade.

The longevity industry would happily sell you a hundred biomarkers, a genetic deep-dive and a wearable for each wrist. But when you ask the unglamorous epidemiological question — which measurements actually predict who thrives over the next ten to twenty years? — the list gets short, cheap and rather old-fashioned.

• Blood pressure. Still the single most consequential modifiable risk factor for heart attack, stroke and dementia. Quietly drifting upwards for years before anyone calls it hypertension.
• ApoB. A truer count of the particles that actually cause atherosclerosis than standard cholesterol. Two people with the same LDL can carry very different real risk — ApoB tells them apart.
• HbA1c. Your three-month blood sugar average. The pre-diabetic range is a ten-year early warning that almost nobody acts on — and it responds beautifully to being acted on.
• VO2 max. Cardiorespiratory fitness has one of the steepest mortality gradients ever measured. Moving from 'low' to merely 'below average' is associated with a risk reduction most drugs would envy.
• Grip strength. The unglamorous proxy for total muscle mass and future frailty. It predicts independence in your eighties from measurements in your forties.

Notice what these five have in common: every one is measurable in an hour, every one is modifiable, and not one requires a subscription. That's the whole philosophy of our assessments — find your real numbers, fix the two or three that are drifting, and re-measure. Repeat for forty years.

Prevention isn't a product. It's arithmetic, done early, acted on consistently.