Reference is personal.
Population ranges describe averages. Trajectories describe you. We measure against your own baseline, established and re-established over years.
Approach
Trajectory Medicine.
A primary category.
Trajectory Medicine is not preventive medicine, and it is not longevity hype. It is a longitudinal reading of biology — a methodology, not a menu.
Four Principles
Signal precedes diagnosis.
A value can drift inside its range for a decade before crossing it. Trajectory Medicine treats the drift as the data, not the crossing.
Intervention is tier-graded.
Every recommendation carries its evidence tier. Tier 1 is large-trial validated. Tier 3 is mechanistic and provisional. Patients see the tier; the tier governs the decision.
The loop is the practice.
Measure. Intervene. Re-measure at 90 days. Re-measure at 180. The loop is not a follow-up; it is the unit of care.
Trajectory Medicine is a category, not a brand.
We hope, in time, it stops belonging only to us.