The Science
Your Physical Signal Score and CogniScore are deterministic fusion, not a black box — and we tell you exactly which parts are computed, estimated, or merely narrated.
Domain signals are normalized, weighted, and combined by a fixed formula. The same inputs always produce the same two scores — independently verifiable.
Each employee receives a Physical Biological Age and a Brain Age alongside their two scores. Both use published, research-grounded methods — Klemera-Doubal (2006) and DunedinPACE (2022) — applied to measured inputs, never to a self-reported questionnaire. General-wellness context only; non-diagnostic, and never a clinical finding.
Every figure in the app carries its epistemic status. You always know how much to trust a number — and where the model's judgment begins and ends.
Deterministic
DeterministicComputed by a fixed formula. Reproducible to the bit. No model judgment.
Physical Signal Score · CogniScore · R/A/G threshold
Estimated
EstimatedStatistical inference with a stated confidence band. Updates as data arrives.
Aerobic capacity estimate · age-norm percentile
Narrated
NarratedPlain-language explanation of the numbers above. The LLM describes, it never decides.
Monthly summary · trend narration
The LLM only narrates. It turns the deterministic and estimated numbers into plain language. It cannot change a score, move a traffic light, or raise an alarm — those are computed, not generated.