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Marc-André Bombeck
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The BP pillar value equalled the binary all-time in-target rate: the share of paired readings where both systolic and diastolic sat at or below the age-band ceiling. A borderline stage-1 profile (diastolic a few mmHg over the ceiling on most readings) collapsed the pillar to the teens even though the reading is "a bit high", not catastrophic — and improvement never surfaced because the rate is all-time and binary. Replace the binary rate AS THE SCORE with a smooth clinical-proximity grade. A recency-weighted representative reading (45-day half-life) is mapped per axis onto a 0-100 curve anchored on the same age-band ceiling the rest of the app uses — optimal ≈ 100, at the ceiling ≈ 85, then piecewise-linear down through the over-target bands; hypotension is penalised symmetrically below the clinical floors. The pillar takes the worse of the two axes, so an elevated diastolic counts without binary-zeroing the result. A 134/87 profile against a 129/79 ceiling now reads in the mid-50s. The in-target rate stays available as a secondary "X% of readings in range" stat. The healthScore.components.bp shape is unchanged — only the value moves.