Address the four horsemen before they appear

Cardiovascular disease, cancer, neurodegeneration, and metabolic dysfunction have decades-long developmental trajectories — intervene early.

Why it works

Each of the four major chronic diseases has an extended pre-clinical phase: atherosclerosis begins in adolescence; metabolic syndrome develops over decades before diabetes; amyloid plaques accumulate 20 years before Alzheimer’s symptoms. Standard medicine intervenes when the disease is detectable; a healthspan-first approach intervenes at the causative risk factors (LDL particle number, insulin resistance, VO2 max, sleep architecture) when modification is most effective.

How to do it

1. Get a comprehensive metabolic panel, lipid panel, and fasting glucose annually rather than waiting for symptoms.
2. Request apolipoprotein B (ApoB) in addition to LDL cholesterol — ApoB is a more accurate cardiovascular risk predictor and is increasingly accessible.
3. Track VO2 max, grip strength, and HbA1c — the physiological markers most predictive of the four horsemen — and set targets for each.
4. If any marker is in the high-risk range, treat it as actionable now rather than waiting for it to worsen.

Evidence

The long pre-clinical phases of atherosclerosis, metabolic syndrome, and Alzheimer’s are well-documented. ApoB is validated as a superior cardiovascular risk biomarker versus LDL in multiple prospective studies. Early intervention evidence is primarily from cardiovascular trials. (observational)

Early intervention for most of the four horsemen is supported by observational data and mechanistic understanding; long-term RCTs of prevention beginning in the 30s and 40s are difficult to run.

Sources

• Sniderman et al. (2019), "ApoB versus non-HDL as a target for lipid-lowering," Journal of the American College of Cardiology

Common mistake

Waiting for a symptom, a diagnosis, or a doctor’s concern before making lifestyle changes. By the time a condition is symptomatic, the pre-clinical window for the highest-leverage interventions has usually passed.