Healthspan v0

Health knowledge that extends and expands the human healthspan — evidence-graded, plain-language, and sourced. This is the v0 skeleton; the product wedge is set by R1.

→ Optimal Range — the v0 tool: enter your blood-test markers and see which are healthspan-optimal, not just lab-“normal”.

Knowledge (1)

• Sleep duration and healthspan
  B — Moderate certainty (consistent observational data)

  Habitual sleep of roughly 7 hours a night is associated with the lowest all-cause mortality in adults; both short and long sleep track with worse outcomes. Association, not proof of cause.

Every entry above is forced by the build to carry an evidence grade and at least one source. No grade, no source, no build. Compliance is a feature.