diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index 0005a232d..0e1b9250f 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -18631,6 +18631,14 @@ components:
           minimum: -9007199254740991
           maximum: 9007199254740991
           description: Minimum paired-day count enforced per pair.
+        emerging:
+          description: v1.22 — rolling early-detection pass over the trailing window; emerging pairs not yet established
+            retrospectively (no double-count).
+          $ref: "#/components/schemas/EmergingCorrelationResult"
+        labCorrelations:
+          description: v1.22 — labs ↔ outcome associations (each draw vs the contemporaneous outcome window-mean), FDR-controlled;
+            absent-degrading on sparse draws.
+          $ref: "#/components/schemas/LabCorrelationResult"
       required:
         - discovered
         - pairsTested
@@ -18670,6 +18678,16 @@ components:
           minimum: -9007199254740991
           maximum: 9007199254740991
           description: Lag in days applied (1).
+        window:
+          description: v1.22 — which window surfaced the pair. Absent on the 180-day scan (retrospective default); `recent` for an
+            emerging early-detection pair.
+          type: string
+          enum:
+            - retrospective
+            - recent
+        provisional:
+          description: "v1.22 — true for an emerging recent-window pair: fewer days, hedged as provisional rather than established."
+          type: boolean
       required:
         - behaviour
         - outcome
@@ -18680,6 +18698,107 @@ components:
         - interpretation
         - lagDays
       additionalProperties: false
+    EmergingCorrelationResult:
+      type: object
+      properties:
+        emerging:
+          type: array
+          items:
+            $ref: "#/components/schemas/DiscoveredCorrelation"
+          description: Recent-window pairs NOT already established retrospectively — the emerging signals (provisional, hedged).
+        windowDays:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Trailing window (days) the early pass scanned.
+        minPairs:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Paired-day floor enforced for the early pass.
+        fdrQ:
+          type: number
+          description: FDR target the early pass used (tighter than the main scan).
+        pairsTested:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Pairs tested in the early window.
+      required:
+        - emerging
+        - windowDays
+        - minPairs
+        - fdrQ
+        - pairsTested
+      additionalProperties: false
+    LabCorrelationResult:
+      type: object
+      properties:
+        discovered:
+          type: array
+          items:
+            $ref: "#/components/schemas/DiscoveredLabCorrelation"
+          description: Lab ↔ outcome associations surviving the per-pair floor + BH-FDR.
+        pairsTested:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Lab × outcome pairs assessed.
+        fdrQ:
+          type: number
+          description: The FDR target the pass used.
+        minDraws:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Minimum paired-draw count enforced per pair.
+      required:
+        - discovered
+        - pairsTested
+        - fdrQ
+        - minDraws
+      additionalProperties: false
+    DiscoveredLabCorrelation:
+      type: object
+      properties:
+        lab:
+          type: string
+          description: "`LAB:<analyte>` channel key (display strips the prefix)."
+        outcome:
+          type: string
+          description: Outcome channel the marker tracks with (WEIGHT, BLOOD_GLUCOSE, BLOOD_PRESSURE_SYS).
+        n:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Draws paired with a usable contemporaneous outcome window.
+        r:
+          type: number
+          description: Pearson r over (draw value, contemporaneous outcome window-mean).
+        pValue:
+          type: number
+          description: Two-sided exact Student-t p-value (< 0.05).
+        qValue:
+          type: number
+          description: Benjamini-Hochberg FDR-adjusted q-value (≤ the surface threshold).
+        windowDays:
+          type: integer
+          minimum: -9007199254740991
+          maximum: 9007199254740991
+          description: Trailing days each draw's outcome window spanned.
+        interpretation:
+          type: string
+          description: Conservative, descriptive interpretation — never causal.
+      required:
+        - lab
+        - outcome
+        - n
+        - r
+        - pValue
+        - qValue
+        - windowDays
+        - interpretation
+      additionalProperties: false
     MoodTagTreeEnvelope:
       type: object
       properties:
diff --git a/src/app/api/insights/correlations/__tests__/route.test.ts b/src/app/api/insights/correlations/__tests__/route.test.ts
index ea5d940a5..a4d8b711f 100644
--- a/src/app/api/insights/correlations/__tests__/route.test.ts
+++ b/src/app/api/insights/correlations/__tests__/route.test.ts
@@ -18,6 +18,8 @@ vi.mock("@/lib/db", () => ({
     medicationIntakeEvent: { findMany: vi.fn().mockResolvedValue([]) },
     illnessEpisode: { findMany: vi.fn().mockResolvedValue([]) },
     illnessDayLog: { findMany: vi.fn().mockResolvedValue([]) },
+    // v1.22 — labs ↔ outcome pass fetches lab draws; default empty.
+    labResult: { findMany: vi.fn().mockResolvedValue([]) },
   },
 }));
 
@@ -109,6 +111,8 @@ beforeEach(() => {
   (prisma.illnessDayLog.findMany as ReturnType<typeof vi.fn>).mockResolvedValue(
     [],
   );
+  // v1.22 — labs ↔ outcome pass reads lab draws; default empty.
+  (prisma.labResult.findMany as ReturnType<typeof vi.fn>).mockResolvedValue([]);
 });
 
 const callGet = GET as unknown as (req: NextRequest) => Promise<Response>;
diff --git a/src/app/api/insights/correlations/route.ts b/src/app/api/insights/correlations/route.ts
index e9b511687..33cf3329a 100644
--- a/src/app/api/insights/correlations/route.ts
+++ b/src/app/api/insights/correlations/route.ts
@@ -26,9 +26,12 @@ import { wallClockInTz } from "@/lib/tz/wall-clock";
 import type { MeasurementType } from "@/generated/prisma/client";
 import {
   discoverCorrelations,
+  discoverEmergingCorrelations,
+  discoverLabOutcomeCorrelations,
   discoveryMeasurementTypes,
   DISCOVERY_BEHAVIOURS,
   DISCOVERY_OUTCOMES,
+  EARLY_WINDOW_DAYS,
   MEDICATION_COMPLIANCE_CHANNEL_KEY,
   SYMPTOM_SEVERITY_CHANNEL_KEY,
   type DailySeriesPoint,
@@ -36,6 +39,7 @@ import {
 } from "@/lib/insights/correlation-discovery";
 import {
   fetchComplianceSeries,
+  fetchLabDraws,
   fetchSymptomSeries,
 } from "@/lib/insights/correlation-channel-series";
 
@@ -147,8 +151,12 @@ export const GET = apiHandler(async () => {
   // v1.21.0 (FDREXTEND) — build the two non-measurement, non-mood channels from
   // their own sources. Each degrades to an empty series when the user has no
   // data, so the discovery loop drops the channel (it cannot clear n ≥ 20).
-  const complianceSeries = await fetchComplianceSeries(user.id, tz, since);
-  const symptomSeries = await fetchSymptomSeries(user.id, tz, since);
+  // v1.22 — lab draws (for the labs ↔ outcome pass) fetch alongside.
+  const [complianceSeries, symptomSeries, labDraws] = await Promise.all([
+    fetchComplianceSeries(user.id, tz, since),
+    fetchSymptomSeries(user.id, tz, since),
+    fetchLabDraws(user.id, tz, since),
+  ]);
 
   const points = (key: string): DailySeriesPoint[] =>
     key === "MOOD"
@@ -175,6 +183,21 @@ export const GET = apiHandler(async () => {
 
   const result = discoverCorrelations(series);
 
+  // v1.22 — rolling early-detection pass over the trailing window, re-using
+  // the already-built series (no extra DB read). Emerging pairs exclude anything
+  // the retrospective scan already established (no double-count).
+  const recentFromDayKey = tzDayKey(
+    new Date(now.getTime() - EARLY_WINDOW_DAYS * MS_PER_DAY),
+    tz,
+  );
+  const emerging = discoverEmergingCorrelations(series, result, {
+    recentFromDayKey,
+  });
+
+  // v1.22 — labs ↔ outcome pass (point-vs-window over sparse draws). Degrades
+  // to absent when the user has too few draws to clear the per-pair floor.
+  const labCorrelations = discoverLabOutcomeCorrelations(labDraws, series);
+
   annotate({
     action: { name: "insights.correlations.discover" },
     meta: {
@@ -185,8 +208,13 @@ export const GET = apiHandler(async () => {
       // two sparse new channels reached the n ≥ 20 floor or degraded to absent.
       compliance_days: complianceSeries.points.length,
       symptom_days: symptomSeries.points.length,
+      // v1.22 — early-detection + labs reach.
+      emerging: emerging.emerging.length,
+      emerging_window_days: emerging.windowDays,
+      lab_draws: labDraws.length,
+      lab_correlations: labCorrelations.discovered.length,
     },
   });
 
-  return apiSuccess(result);
+  return apiSuccess({ ...result, emerging, labCorrelations });
 });
diff --git a/src/lib/ai/coach/__tests__/correlations-read.test.ts b/src/lib/ai/coach/__tests__/correlations-read.test.ts
index fcda4fbed..2ab4f2cb6 100644
--- a/src/lib/ai/coach/__tests__/correlations-read.test.ts
+++ b/src/lib/ai/coach/__tests__/correlations-read.test.ts
@@ -12,6 +12,7 @@ const medicationFindMany = vi.fn();
 const intakeEventFindMany = vi.fn();
 const illnessEpisodeFindMany = vi.fn();
 const illnessDayLogFindMany = vi.fn();
+const labResultFindMany = vi.fn();
 vi.mock("@/lib/db", () => ({
   prisma: {
     measurement: { findMany: (a: unknown) => measurementFindMany(a) },
@@ -21,6 +22,7 @@ vi.mock("@/lib/db", () => ({
     medicationIntakeEvent: { findMany: (a: unknown) => intakeEventFindMany(a) },
     illnessEpisode: { findMany: (a: unknown) => illnessEpisodeFindMany(a) },
     illnessDayLog: { findMany: (a: unknown) => illnessDayLogFindMany(a) },
+    labResult: { findMany: (a: unknown) => labResultFindMany(a) },
   },
 }));
 
@@ -59,6 +61,7 @@ describe("readCoachCorrelations", () => {
     intakeEventFindMany.mockReset().mockResolvedValue([]);
     illnessEpisodeFindMany.mockReset().mockResolvedValue([]);
     illnessDayLogFindMany.mockReset().mockResolvedValue([]);
+    labResultFindMany.mockReset().mockResolvedValue([]);
     loadBaselineProfile
       .mockReset()
       .mockResolvedValue({ ageYears: 40, sex: "MALE", heightCm: 180 });
diff --git a/src/lib/ai/coach/tools/correlations-read.ts b/src/lib/ai/coach/tools/correlations-read.ts
index 997360678..ebeb3e2d5 100644
--- a/src/lib/ai/coach/tools/correlations-read.ts
+++ b/src/lib/ai/coach/tools/correlations-read.ts
@@ -27,9 +27,12 @@ import { prisma } from "@/lib/db";
 import { wallClockInTz } from "@/lib/tz/wall-clock";
 import {
   discoverCorrelations,
+  discoverEmergingCorrelations,
+  discoverLabOutcomeCorrelations,
   discoveryMeasurementTypes,
   DISCOVERY_BEHAVIOURS,
   DISCOVERY_OUTCOMES,
+  EARLY_WINDOW_DAYS,
   MEDICATION_COMPLIANCE_CHANNEL_KEY,
   SYMPTOM_SEVERITY_CHANNEL_KEY,
   type DailySeriesPoint,
@@ -37,6 +40,7 @@ import {
 } from "@/lib/insights/correlation-discovery";
 import {
   fetchComplianceSeries,
+  fetchLabDraws,
   fetchSymptomSeries,
 } from "@/lib/insights/correlation-channel-series";
 import {
@@ -77,9 +81,38 @@ export interface CoachCoincidentFlag {
   illnessExplained: boolean;
 }
 
+/** One emerging (recent-window) driver — provisional, hedged. */
+export interface CoachEmergingDriver extends CoachCorrelationDriver {
+  /** Always true here — a recent-window signal on fewer days. */
+  provisional: true;
+}
+
+/** One labs ↔ outcome association — descriptive, never causal. */
+export interface CoachLabCorrelation {
+  /** Display analyte name (LAB: prefix stripped). */
+  lab: string;
+  /** The outcome it tracks with. */
+  outcome: string;
+  direction: "higher" | "lower";
+  /** Paired draws. */
+  n: number;
+  r: number;
+  note: string;
+}
+
 export interface CoachCorrelationsResult {
   present: boolean;
   drivers?: CoachCorrelationDriver[];
+  /**
+   * v1.22 — emerging recent-window drivers NOT yet established by the 180-day
+   * scan: early-detection signals the Coach narrates as provisional.
+   */
+  emerging?: CoachEmergingDriver[];
+  /**
+   * v1.22 — labs ↔ outcome associations (each draw vs the contemporaneous
+   * outcome window-mean), FDR-controlled. Descriptive, never causal.
+   */
+  labDrivers?: CoachLabCorrelation[];
   coincident?: CoachCoincidentFlag;
   /** How many behaviour×outcome pairs were tested (honest footer). */
   pairsTested?: number;
@@ -194,8 +227,12 @@ export async function readCoachCorrelations(
     // like the route. Each degrades to an empty series when the user has no
     // data, so the discovery loop drops the channel (it cannot clear the n ≥ 20
     // floor) — it can never surface a fabricated driver.
-    const complianceSeries = await fetchComplianceSeries(userId, tz, since);
-    const symptomSeries = await fetchSymptomSeries(userId, tz, since);
+    const [complianceSeries, symptomSeries, labDraws] = await Promise.all([
+      fetchComplianceSeries(userId, tz, since),
+      fetchSymptomSeries(userId, tz, since),
+      // v1.22 — lab draws for the labs ↔ outcome pass (degrades to absent).
+      fetchLabDraws(userId, tz, since),
+    ]);
 
     const series: NamedSeries[] = [];
     for (const key of DISCOVERY_BEHAVIOURS) {
@@ -230,17 +267,59 @@ export async function readCoachCorrelations(
       note: d.interpretation,
     }));
 
+    // v1.22 — rolling early-detection pass over the trailing window (re-uses
+    // the already-built series). Emerging pairs exclude anything the 180-day
+    // scan already established, so the Coach never narrates the same pattern as
+    // both "established" and "emerging".
+    const recentFromDayKey = tzDayKey(
+      new Date(Date.now() - EARLY_WINDOW_DAYS * MS_PER_DAY),
+      tz,
+    );
+    const emergingResult = discoverEmergingCorrelations(series, discovery, {
+      recentFromDayKey,
+    });
+    const emerging: CoachEmergingDriver[] = emergingResult.emerging.map(
+      (d) => ({
+        behaviour: humanise(d.behaviour),
+        outcome: humanise(d.outcome),
+        direction: d.r >= 0 ? "higher" : "lower",
+        lagDays: d.lagDays,
+        n: d.n,
+        r: Math.round(d.r * 100) / 100,
+        note: d.interpretation,
+        provisional: true,
+      }),
+    );
+
+    // v1.22 — labs ↔ outcome pass (point-vs-window over sparse draws).
+    const labResult = discoverLabOutcomeCorrelations(labDraws, series);
+    const labDrivers: CoachLabCorrelation[] = labResult.discovered.map((d) => ({
+      lab: d.lab.startsWith("LAB:") ? d.lab.slice("LAB:".length) : d.lab,
+      outcome: humanise(d.outcome),
+      direction: d.r >= 0 ? "higher" : "lower",
+      n: d.n,
+      r: Math.round(d.r * 100) / 100,
+      note: d.interpretation,
+    }));
+
     const coincident = buildCoincidentFlag(coincidentDerived);
 
-    // Nothing to say: no surviving driver AND the coincident flag is either
-    // insufficient or quiet (not fired). Report a clean miss.
-    if (drivers.length === 0 && (!coincident || !coincident.fired)) {
+    // Nothing to say: no surviving driver of any kind AND the coincident flag is
+    // either insufficient or quiet (not fired). Report a clean miss.
+    if (
+      drivers.length === 0 &&
+      emerging.length === 0 &&
+      labDrivers.length === 0 &&
+      (!coincident || !coincident.fired)
+    ) {
       return { present: false, reason: "no_significant_pattern" };
     }
 
     return {
       present: true,
       ...(drivers.length > 0 ? { drivers } : {}),
+      ...(emerging.length > 0 ? { emerging } : {}),
+      ...(labDrivers.length > 0 ? { labDrivers } : {}),
       ...(coincident ? { coincident } : {}),
       pairsTested: discovery.pairsTested,
       windowDays: WINDOW_DAYS,
diff --git a/src/lib/insights/__tests__/correlation-discovery.test.ts b/src/lib/insights/__tests__/correlation-discovery.test.ts
index 8eb2bff08..02c7c9060 100644
--- a/src/lib/insights/__tests__/correlation-discovery.test.ts
+++ b/src/lib/insights/__tests__/correlation-discovery.test.ts
@@ -529,3 +529,253 @@ describe("compliance + symptom channels (FDREXTEND)", () => {
     expect(pair!.r).toBeLessThan(0); // higher adherence → lower next-day RHR
   });
 });
+
+// ─── v1.22 — new linkages + early detection + labs ────────────────────────
+
+import {
+  DISCOVERY_BEHAVIOURS as MATRIX_BEHAVIOURS,
+  DISCOVERY_OUTCOMES as MATRIX_OUTCOMES,
+  discoverEmergingCorrelations,
+  discoverLabOutcomeCorrelations,
+  filterSeriesToWindow,
+  EARLY_WINDOW_DAYS,
+  type LabDrawPoint,
+} from "../correlation-discovery";
+
+/** Contiguous daily series starting `startISO` (YYYY-MM-DD). */
+function seriesFrom(startISO: string, values: number[]): DailySeriesPoint[] {
+  const [y, m, d] = startISO.split("-").map(Number);
+  const start = Date.UTC(y, m - 1, d);
+  return values.map((value, i) => {
+    const dt = new Date(start + i * 24 * 60 * 60 * 1000);
+    return { day: dt.toISOString().slice(0, 10), value };
+  });
+}
+
+describe("v1.22 — new curated linkages", () => {
+  it("adds sleep as a behaviour (was outcome-only)", () => {
+    expect(MATRIX_BEHAVIOURS).toContain("SLEEP_DURATION");
+  });
+
+  it("adds blood pressure (both components) as outcomes", () => {
+    expect(MATRIX_OUTCOMES).toContain("BLOOD_PRESSURE_SYS");
+    expect(MATRIX_OUTCOMES).toContain("BLOOD_PRESSURE_DIA");
+  });
+
+  it("surfaces compliance→BP_SYS but skips the same-family BP→BP self-cross", () => {
+    const n = 80;
+    const adherence = Array.from({ length: n }, (_, i) =>
+      i % 2 === 0 ? 100 : 50,
+    );
+    // Higher adherence today → lower next-day systolic.
+    const sys = [
+      130,
+      ...adherence
+        .slice(0, n - 1)
+        .map((a, i) => 160 - a / 4 + (i % 2 ? 0.2 : -0.2)),
+    ];
+    const result = discoverCorrelations([
+      {
+        key: MEDICATION_COMPLIANCE_CHANNEL_KEY,
+        role: "behaviour",
+        points: longSeries(adherence),
+      },
+      // BP is both a behaviour and an outcome in the real matrix; the
+      // same-family guard must keep BP_SYS(behaviour)→BP_SYS(outcome) out.
+      { key: "BLOOD_PRESSURE_SYS", role: "behaviour", points: longSeries(sys) },
+      { key: "BLOOD_PRESSURE_SYS", role: "outcome", points: longSeries(sys) },
+    ]);
+    expect(
+      result.discovered.find(
+        (p) =>
+          p.behaviour === "BLOOD_PRESSURE_SYS" &&
+          p.outcome === "BLOOD_PRESSURE_SYS",
+      ),
+    ).toBeUndefined();
+    const link = result.discovered.find(
+      (p) =>
+        p.behaviour === MEDICATION_COMPLIANCE_CHANNEL_KEY &&
+        p.outcome === "BLOOD_PRESSURE_SYS",
+    );
+    expect(link).toBeDefined();
+    expect(link!.r).toBeLessThan(0);
+  });
+});
+
+describe("discoverEmergingCorrelations (early detection)", () => {
+  it("filterSeriesToWindow keeps only on/after the cutoff", () => {
+    const s: NamedSeries[] = [
+      {
+        key: "MOOD",
+        role: "behaviour",
+        points: seriesFrom("2026-03-01", [1, 2, 3, 4, 5]),
+      },
+    ];
+    const filtered = filterSeriesToWindow(s, "2026-03-03");
+    expect(filtered[0].points.map((p) => p.day)).toEqual([
+      "2026-03-03",
+      "2026-03-04",
+      "2026-03-05",
+    ]);
+  });
+
+  it("surfaces a fortnight-long signal the retrospective n≥20 floor cannot yet see", () => {
+    // Only ~18 days of data: a clean behaviour→next-day-outcome coupling. The
+    // retrospective scan needs ≥ 20 lagged pairs, so it sees NOTHING; the early
+    // window (floor 10) catches it — exactly the early-detection mandate.
+    const len = 18;
+    const beh = Array.from({ length: len }, (_, i) => (i % 2 ? 2 : 9));
+    const out = beh.map((b, i) => 40 + b * 3 + (i % 2 ? 0.3 : -0.3));
+    const series: NamedSeries[] = [
+      { key: "MOOD", role: "behaviour", points: longSeries(beh) },
+      {
+        key: "HEART_RATE_VARIABILITY",
+        role: "outcome",
+        points: longSeries(out),
+      },
+    ];
+    const retrospective = discoverCorrelations(series);
+    expect(retrospective.discovered).toHaveLength(0); // n too low for the floor
+
+    const cutoff = longSeries(beh)[0].day; // whole (short) window
+    const { emerging } = discoverEmergingCorrelations(series, retrospective, {
+      recentFromDayKey: cutoff,
+      minPairs: 10,
+    });
+    const pair = emerging.find(
+      (p) => p.behaviour === "MOOD" && p.outcome === "HEART_RATE_VARIABILITY",
+    );
+    expect(pair).toBeDefined();
+    expect(pair!.window).toBe("recent");
+    expect(pair!.provisional).toBe(true);
+  });
+
+  it("does not double-count a pair already established retrospectively", () => {
+    // A strong relationship across the WHOLE 80-day window → retrospective finds
+    // it; the emerging pass must NOT re-surface it.
+    const n = 80;
+    const beh = Array.from({ length: n }, (_, i) => (i % 2 ? 2 : 9));
+    const out = beh.map((b, i) => 40 + b * 3 + (i % 2 ? 0.3 : -0.3));
+    const series: NamedSeries[] = [
+      { key: "MOOD", role: "behaviour", points: longSeries(beh) },
+      {
+        key: "HEART_RATE_VARIABILITY",
+        role: "outcome",
+        points: longSeries(out),
+      },
+    ];
+    const retrospective = discoverCorrelations(series);
+    expect(
+      retrospective.discovered.some(
+        (p) => p.behaviour === "MOOD" && p.outcome === "HEART_RATE_VARIABILITY",
+      ),
+    ).toBe(true);
+    const cutoff = new Date(
+      Date.UTC(2026, 0, 1) + (n - EARLY_WINDOW_DAYS) * 24 * 60 * 60 * 1000,
+    )
+      .toISOString()
+      .slice(0, 10);
+    const { emerging } = discoverEmergingCorrelations(series, retrospective, {
+      recentFromDayKey: cutoff,
+      minPairs: 10,
+    });
+    expect(
+      emerging.find(
+        (p) => p.behaviour === "MOOD" && p.outcome === "HEART_RATE_VARIABILITY",
+      ),
+    ).toBeUndefined();
+  });
+
+  it("returns nothing on pure noise (FDR + high bar hold in the short window)", () => {
+    const n = 30;
+    const beh = Array.from({ length: n }, (_, i) => (i * 7) % 11);
+    const out = Array.from({ length: n }, (_, i) => (i * 3) % 5);
+    const series: NamedSeries[] = [
+      { key: "MOOD", role: "behaviour", points: longSeries(beh) },
+      {
+        key: "HEART_RATE_VARIABILITY",
+        role: "outcome",
+        points: longSeries(out),
+      },
+    ];
+    const retrospective = discoverCorrelations(series);
+    const cutoff = longSeries(beh)[Math.max(0, n - EARLY_WINDOW_DAYS)].day;
+    const { emerging } = discoverEmergingCorrelations(series, retrospective, {
+      recentFromDayKey: cutoff,
+      minPairs: 10,
+    });
+    expect(emerging).toHaveLength(0);
+  });
+});
+
+describe("discoverLabOutcomeCorrelations (labs ↔ outcomes)", () => {
+  function weightSeries(): NamedSeries {
+    // Daily weight that drifts up over ~6 months.
+    const values = Array.from({ length: 180 }, (_, i) => 80 + i * 0.05);
+    return {
+      key: "WEIGHT",
+      role: "outcome",
+      points: seriesFrom("2026-01-01", values),
+    };
+  }
+
+  it("surfaces a lab that tracks the contemporaneous outcome window-mean", () => {
+    const weight = weightSeries();
+    // 8 monthly-ish HbA1c-like draws that rise with weight.
+    const draws: LabDrawPoint[] = [];
+    for (let i = 0; i < 8; i++) {
+      const dayIdx = 30 + i * 18; // spread draws across the window
+      const day = weight.points[dayIdx].day;
+      // Value tracks the period's weight mean (with tiny jitter).
+      const v = 5.0 + dayIdx * 0.01 + (i % 2 ? 0.02 : -0.02);
+      draws.push({ key: "LAB:HbA1c", day, value: v });
+    }
+    const result = discoverLabOutcomeCorrelations(draws, [weight], {
+      minDraws: 5,
+      minWindowPoints: 5,
+    });
+    const pair = result.discovered.find(
+      (d) => d.lab === "LAB:HbA1c" && d.outcome === "WEIGHT",
+    );
+    expect(pair).toBeDefined();
+    expect(pair!.n).toBeGreaterThanOrEqual(5);
+    expect(pair!.r).toBeGreaterThan(0);
+    expect(pair!.qValue).toBeLessThanOrEqual(result.fdrQ);
+    expect(pair!.interpretation).toMatch(/never a cause/i);
+  });
+
+  it("degrades to absent when the marker has too few draws", () => {
+    const weight = weightSeries();
+    const draws: LabDrawPoint[] = [0, 1, 2].map((i) => ({
+      key: "LAB:HbA1c",
+      day: weight.points[30 + i * 18].day,
+      value: 5 + i,
+    }));
+    const result = discoverLabOutcomeCorrelations(draws, [weight], {
+      minDraws: 5,
+    });
+    expect(result.discovered).toHaveLength(0);
+    expect(result.pairsTested).toBe(0);
+  });
+
+  it("ignores outcomes outside the curated lab-target set", () => {
+    const hrv: NamedSeries = {
+      key: "HEART_RATE_VARIABILITY",
+      role: "outcome",
+      points: seriesFrom(
+        "2026-01-01",
+        Array.from({ length: 180 }, (_, i) => 50 + i * 0.1),
+      ),
+    };
+    const draws: LabDrawPoint[] = Array.from({ length: 8 }, (_, i) => ({
+      key: "LAB:HbA1c",
+      day: hrv.points[30 + i * 18].day,
+      value: 5 + i,
+    }));
+    const result = discoverLabOutcomeCorrelations(draws, [hrv], {
+      minDraws: 5,
+    });
+    // HRV is not a curated lab-outcome target → no pair tested.
+    expect(result.pairsTested).toBe(0);
+  });
+});
diff --git a/src/lib/insights/__tests__/features.test.ts b/src/lib/insights/__tests__/features.test.ts
index 1572b4b3e..8104af687 100644
--- a/src/lib/insights/__tests__/features.test.ts
+++ b/src/lib/insights/__tests__/features.test.ts
@@ -3,12 +3,16 @@ import { describe, expect, it, vi, beforeEach } from "vitest";
 vi.mock("@/lib/db", () => ({
   prisma: {
     user: { findUnique: vi.fn() },
-    measurement: { findMany: vi.fn() },
+    measurement: { findMany: vi.fn(), groupBy: vi.fn() },
     measurementRollup: { findMany: vi.fn() },
     moodEntry: { findMany: vi.fn(), findFirst: vi.fn() },
     moodEntryRollup: { findMany: vi.fn(), findFirst: vi.fn() },
     medication: { findMany: vi.fn() },
     medicationIntakeEvent: { findMany: vi.fn() },
+    // v1.22 — cross-signal integration blocks.
+    labResult: { findMany: vi.fn() },
+    measurementReminder: { findMany: vi.fn() },
+    workout: { findMany: vi.fn() },
     $queryRawUnsafe: vi.fn(),
   },
 }));
@@ -41,7 +45,10 @@ import {
 
 const prismaMock = prisma as unknown as {
   user: { findUnique: ReturnType<typeof vi.fn> };
-  measurement: { findMany: ReturnType<typeof vi.fn> };
+  measurement: {
+    findMany: ReturnType<typeof vi.fn>;
+    groupBy: ReturnType<typeof vi.fn>;
+  };
   measurementRollup: { findMany: ReturnType<typeof vi.fn> };
   moodEntry: {
     findMany: ReturnType<typeof vi.fn>;
@@ -53,6 +60,9 @@ const prismaMock = prisma as unknown as {
   };
   medication: { findMany: ReturnType<typeof vi.fn> };
   medicationIntakeEvent: { findMany: ReturnType<typeof vi.fn> };
+  labResult: { findMany: ReturnType<typeof vi.fn> };
+  measurementReminder: { findMany: ReturnType<typeof vi.fn> };
+  workout: { findMany: ReturnType<typeof vi.fn> };
 };
 
 const dayMs = 24 * 60 * 60 * 1000;
@@ -79,6 +89,7 @@ beforeEach(() => {
     gender: "MALE",
   });
   prismaMock.measurement.findMany.mockResolvedValue([]);
+  prismaMock.measurement.groupBy.mockResolvedValue([]);
   prismaMock.measurementRollup.findMany.mockResolvedValue([]);
   prismaMock.moodEntry.findMany.mockResolvedValue([]);
   prismaMock.moodEntry.findFirst.mockResolvedValue(null);
@@ -86,6 +97,9 @@ beforeEach(() => {
   prismaMock.moodEntryRollup.findFirst.mockResolvedValue(null);
   prismaMock.medication.findMany.mockResolvedValue([]);
   prismaMock.medicationIntakeEvent.findMany.mockResolvedValue([]);
+  prismaMock.labResult.findMany.mockResolvedValue([]);
+  prismaMock.measurementReminder.findMany.mockResolvedValue([]);
+  prismaMock.workout.findMany.mockResolvedValue([]);
 });
 
 describe("extractFeatures — v1.4.36 W3 bucketed payload", () => {
@@ -187,3 +201,199 @@ describe("extractFeatures — v1.4.36 W3 bucketed payload", () => {
     expect(FEATURES_MAX_BYTES).toBe(5 * 1024 * 1024);
   });
 });
+
+// ─── v1.22 — cross-signal integration blocks ──────────────────────────────
+
+const DAY_MS = 24 * 60 * 60 * 1000;
+
+function measurementRow(type: string, value: number, daysAgo: number) {
+  return {
+    type,
+    value,
+    measuredAt: new Date(Date.now() - daysAgo * DAY_MS),
+    sleepStage: null,
+    source: "MANUAL",
+    deviceType: null,
+  };
+}
+
+function labRow(opts: {
+  analyte: string;
+  value: number | null;
+  referenceLow: number | null;
+  referenceHigh: number | null;
+  daysAgo: number;
+  hidden?: boolean;
+  valueText?: string | null;
+}) {
+  return {
+    analyte: opts.analyte,
+    panel: null,
+    unit: "mg/dL",
+    value: opts.value,
+    valueText: opts.valueText ?? null,
+    referenceLow: opts.referenceLow,
+    referenceHigh: opts.referenceHigh,
+    takenAt: new Date(Date.now() - opts.daysAgo * DAY_MS),
+    biomarkerId: opts.hidden === undefined ? null : "bm-" + opts.analyte,
+    biomarker:
+      opts.hidden === undefined
+        ? null
+        : {
+            id: "bm-" + opts.analyte,
+            name: opts.analyte,
+            unit: "mg/dL",
+            lowerBound: opts.referenceLow,
+            upperBound: opts.referenceHigh,
+            panel: null,
+            hidden: opts.hidden,
+          },
+  };
+}
+
+describe("extractFeatures — v1.22 glucose aggregate block", () => {
+  it("emits a glucose block from BLOOD_GLUCOSE readings", async () => {
+    prismaMock.measurement.findMany.mockResolvedValue([
+      measurementRow("BLOOD_GLUCOSE", 95, 1),
+      measurementRow("BLOOD_GLUCOSE", 110, 10),
+      measurementRow("BLOOD_GLUCOSE", 105, 40),
+    ]);
+    const f = await extractFeatures("user-1", false);
+    expect(f.glucose).toBeDefined();
+    expect(f.glucose?.latest).not.toBeNull();
+    expect(f.glucose?.coverage.count).toBe(3);
+  });
+
+  it("omits the glucose block when there are no readings", async () => {
+    const f = await extractFeatures("user-1", false);
+    expect(f.glucose).toBeUndefined();
+  });
+});
+
+describe("extractFeatures — v1.22 labs briefing block", () => {
+  it("surfaces an abnormal (out-of-range) biomarker", async () => {
+    prismaMock.labResult.findMany.mockResolvedValue([
+      labRow({
+        analyte: "LDL",
+        value: 200,
+        referenceLow: 0,
+        referenceHigh: 130,
+        daysAgo: 5,
+      }),
+    ]);
+    const f = await extractFeatures("user-1", false);
+    expect(f.labs).toBeDefined();
+    expect(f.labs?.flagged[0]?.analyte).toBe("LDL");
+    expect(f.labs?.flagged[0]?.rangeStatus).toBe("above");
+  });
+
+  it("excludes a HIDDEN biomarker even when it is abnormal", async () => {
+    prismaMock.labResult.findMany.mockResolvedValue([
+      labRow({
+        analyte: "Ferritin",
+        value: 500,
+        referenceLow: 30,
+        referenceHigh: 300,
+        daysAgo: 3,
+        hidden: true,
+      }),
+    ]);
+    const f = await extractFeatures("user-1", false);
+    // The only marker is hidden + abnormal → block omitted entirely.
+    expect(f.labs).toBeUndefined();
+  });
+
+  it("does not surface an in-range, non-trending marker", async () => {
+    prismaMock.labResult.findMany.mockResolvedValue([
+      labRow({
+        analyte: "TSH",
+        value: 2,
+        referenceLow: 0.4,
+        referenceHigh: 4,
+        daysAgo: 4,
+      }),
+    ]);
+    const f = await extractFeatures("user-1", false);
+    expect(f.labs).toBeUndefined();
+  });
+
+  it("surfaces an in-range but trending marker (rising vs prior reading)", async () => {
+    prismaMock.labResult.findMany.mockResolvedValue([
+      // Newest first (route orders desc); both in range, but rising.
+      labRow({
+        analyte: "Glucose",
+        value: 99,
+        referenceLow: 70,
+        referenceHigh: 100,
+        daysAgo: 2,
+      }),
+      labRow({
+        analyte: "Glucose",
+        value: 80,
+        referenceLow: 70,
+        referenceHigh: 100,
+        daysAgo: 60,
+      }),
+    ]);
+    const f = await extractFeatures("user-1", false);
+    expect(f.labs?.flagged[0]?.trend).toBe("rising");
+  });
+});
+
+describe("extractFeatures — v1.22 preventive-care block", () => {
+  it("buckets reminders into overdue and due", async () => {
+    prismaMock.measurementReminder.findMany.mockResolvedValue([
+      { label: "Blutbild", nextDueAt: new Date(Date.now() - 5 * DAY_MS) },
+      { label: "Augenarzt", nextDueAt: new Date(Date.now() + 7 * DAY_MS) },
+    ]);
+    const f = await extractFeatures("user-1", false);
+    expect(f.preventiveCare?.overdue[0]?.label).toBe("Blutbild");
+    expect(f.preventiveCare?.overdue[0]?.daysOverdue).toBeGreaterThanOrEqual(4);
+    expect(f.preventiveCare?.due[0]?.label).toBe("Augenarzt");
+  });
+
+  it("omits the block when nothing is due or overdue", async () => {
+    const f = await extractFeatures("user-1", false);
+    expect(f.preventiveCare).toBeUndefined();
+  });
+});
+
+describe("extractFeatures — v1.22 workouts block", () => {
+  it("aggregates counts + distance over the windows", async () => {
+    prismaMock.workout.findMany.mockResolvedValue([
+      {
+        sportType: "running",
+        startedAt: new Date(Date.now() - 1 * DAY_MS),
+        durationSec: 1800,
+        totalDistanceM: 5000,
+      },
+      {
+        sportType: "cycling",
+        startedAt: new Date(Date.now() - 20 * DAY_MS),
+        durationSec: 3600,
+        totalDistanceM: 20000,
+      },
+    ]);
+    const f = await extractFeatures("user-1", false);
+    expect(f.workouts?.last7.count).toBe(1);
+    expect(f.workouts?.last30.count).toBe(2);
+    expect(f.workouts?.last7.totalDistanceKm).toBe(5);
+    expect(f.workouts?.latest?.sportType).toBe("running");
+  });
+});
+
+describe("extractFeatures — v1.22 integration blocks are briefing-scoped", () => {
+  it("skips the extra reads on the tight Coach-snapshot window (sinceDays: 90)", async () => {
+    await extractFeatures("user-1", false, { sinceDays: 90 });
+    expect(prismaMock.labResult.findMany).not.toHaveBeenCalled();
+    expect(prismaMock.measurementReminder.findMany).not.toHaveBeenCalled();
+    expect(prismaMock.workout.findMany).not.toHaveBeenCalled();
+  });
+
+  it("runs the extra reads on the wide briefing window (sinceDays: 400)", async () => {
+    await extractFeatures("user-1", false, { sinceDays: 400 });
+    expect(prismaMock.labResult.findMany).toHaveBeenCalled();
+    expect(prismaMock.measurementReminder.findMany).toHaveBeenCalled();
+    expect(prismaMock.workout.findMany).toHaveBeenCalled();
+  });
+});
diff --git a/src/lib/insights/correlation-channel-series.ts b/src/lib/insights/correlation-channel-series.ts
index 7d2c65783..2911716a4 100644
--- a/src/lib/insights/correlation-channel-series.ts
+++ b/src/lib/insights/correlation-channel-series.ts
@@ -24,8 +24,11 @@ import {
 import {
   MEDICATION_COMPLIANCE_CHANNEL_KEY,
   SYMPTOM_SEVERITY_CHANNEL_KEY,
+  type LabDrawPoint,
   type NamedSeries,
 } from "@/lib/insights/correlation-discovery";
+import { resolveLabFields } from "@/lib/labs/serialise";
+import { wallClockInTz } from "@/lib/tz/wall-clock";
 import {
   buildComplianceDailySeries,
   buildSymptomSeverityDailySeries,
@@ -177,3 +180,76 @@ export async function fetchSymptomSeries(
     role: "outcome",
   });
 }
+
+/** Day key (YYYY-MM-DD) for an instant in the user's display timezone. */
+function tzDayKey(at: Date, tz: string): string {
+  const { year, month, day } = wallClockInTz(at, tz);
+  return `${year}-${String(month).padStart(2, "0")}-${String(day).padStart(2, "0")}`;
+}
+
+/**
+ * v1.22 — build the user's lab draws for the labs ↔ outcome correlation pass.
+ *
+ * One {@link LabDrawPoint} per QUANTITATIVE reading in the window, keyed
+ * `LAB:<canonical analyte>` (the resolved name, so two spellings of one marker
+ * collapse). HIDDEN biomarkers are excluded (the W3 catalog `hidden` flag — a
+ * marker the user retired from the active list must not silently re-enter an
+ * analysis surface). Qualitative readings (no numeric `value`) and rows whose
+ * resolved value is non-finite are dropped — there is nothing to correlate.
+ * The encrypted note column is never selected.
+ *
+ * Returns an EMPTY array when the user has no usable readings, so the discovery
+ * pass degrades to absent rather than fabricating a link.
+ */
+export async function fetchLabDraws(
+  userId: string,
+  tz: string,
+  since: Date,
+): Promise<LabDrawPoint[]> {
+  const now = new Date();
+  const rows = await prisma.labResult.findMany({
+    where: {
+      userId,
+      deletedAt: null,
+      value: { not: null },
+      takenAt: { gte: since, lte: now },
+    },
+    orderBy: { takenAt: "asc" },
+    take: 5000,
+    select: {
+      analyte: true,
+      unit: true,
+      referenceLow: true,
+      referenceHigh: true,
+      panel: true,
+      value: true,
+      takenAt: true,
+      biomarkerId: true,
+      biomarker: {
+        select: {
+          id: true,
+          name: true,
+          unit: true,
+          lowerBound: true,
+          upperBound: true,
+          panel: true,
+          hidden: true,
+        },
+      },
+    },
+  });
+
+  const draws: LabDrawPoint[] = [];
+  for (const row of rows) {
+    // Exclude retired markers (W3 hidden flag); unlinked rows cannot be hidden.
+    if (row.biomarker?.hidden) continue;
+    if (row.value === null || !Number.isFinite(row.value)) continue;
+    const resolved = resolveLabFields(row, row.biomarker);
+    draws.push({
+      key: `LAB:${resolved.analyte}`,
+      day: tzDayKey(row.takenAt, tz),
+      value: row.value,
+    });
+  }
+  return draws;
+}
diff --git a/src/lib/insights/correlation-discovery.ts b/src/lib/insights/correlation-discovery.ts
index 54c4d3f05..e76699982 100644
--- a/src/lib/insights/correlation-discovery.ts
+++ b/src/lib/insights/correlation-discovery.ts
@@ -179,6 +179,22 @@ export interface DiscoveredCorrelation {
   interpretation: string;
   /** Lag in days applied (always 1 here). */
   lagDays: number;
+  /**
+   * v1.22 — which window surfaced the pair. `retrospective` = the standard
+   * 180-day scan (the established pattern). `recent` = the rolling
+   * early-detection pass over the trailing {@link EARLY_WINDOW_DAYS} days,
+   * surfaced ONLY when the pair is not already established retrospectively.
+   * Absent on the legacy path so existing consumers read it as the
+   * retrospective default.
+   */
+  window?: "retrospective" | "recent";
+  /**
+   * v1.22 — true for a `recent`-window emerging pair: it cleared a tighter
+   * FDR and a no-faint effect bar over a short window, but rests on fewer days
+   * than the retrospective scan, so the narration must hedge it as emerging /
+   * provisional rather than established.
+   */
+  provisional?: boolean;
 }
 
 export interface CorrelationDiscoveryResult {
@@ -470,6 +486,13 @@ export const DISCOVERY_BEHAVIOURS = [
   "BLOOD_GLUCOSE",
   "BLOOD_PRESSURE_SYS",
   "ACTIVITY_STEPS",
+  // v1.22 — sleep duration as a lag SOURCE too (it was outcome-only). This
+  // opens the clinically-obvious "poor sleep last night → next-day mood / HRV /
+  // a vital drifting" direction. The same-family guard collapses only the
+  // sleep→sleep self-lag (the key is its own family), so sleep stays free to
+  // pair cross-domain. The daily series is the same per-day collapse the outcome
+  // role already uses, so neither role sees a fabricated value.
+  "SLEEP_DURATION",
   // v1.21.0 (FDREXTEND) — daily adherence rate as a lag source: the high-value
   // "adherence dip today → a worse outcome tomorrow" direction.
   MEDICATION_COMPLIANCE_CHANNEL_KEY,
@@ -483,6 +506,16 @@ export const DISCOVERY_OUTCOMES = [
   "HEART_RATE_VARIABILITY",
   "RESTING_HEART_RATE",
   "WEIGHT",
+  // v1.22 — blood pressure as an OUTCOME (it was behaviour-only). This makes
+  // the clinically-obvious "medication adherence → next-day BP control" link
+  // discoverable (compliance reached HRV / RHR / weight but never BP). Both
+  // components are added so diastolic — previously never a candidate channel at
+  // all — can correlate too. The same-family guard skips every
+  // BP-behaviour → BP-outcome self/cross-component lag (serial autocorrelation),
+  // so only genuine cross-domain behaviours (compliance, mood, daylight, …) →
+  // BP survive. BH-FDR controls the wider pair family this opens up.
+  "BLOOD_PRESSURE_SYS",
+  "BLOOD_PRESSURE_DIA",
   // v1.11.5 (F3) — mood is now an OUTCOME channel too, not only a behaviour.
   // The discovery loop skips the MOOD→MOOD self-pair (`b.key === o.key`), so
   // promoting it lets the FDR scan surface "behaviour today → next-day mood"
@@ -504,3 +537,364 @@ export const DISCOVERY_OUTCOMES = [
   // documented here so the omission is intentional, not a gap (same posture
   // as the medication-compliance omission above).
 ] as const;
+
+// ─── v1.22 — rolling early-detection window ───────────────────────────────
+
+/**
+ * v1.22 — trailing window (days) for the rolling EARLY-detection pass.
+ *
+ * The standard discovery scan is retrospective: it needs n ≥ 20 paired days, so
+ * a pattern only surfaces once ~3 weeks of overlap have accrued INSIDE the
+ * 180-day window — it explains the past well but reacts slowly to an emerging
+ * shift (an illness pulling HRV + sleep down together over the last fortnight).
+ * This shorter window re-runs the SAME engine over only the trailing days so a
+ * fresh, concentrated pattern can surface before the long window dilutes it.
+ */
+export const EARLY_WINDOW_DAYS = 21;
+
+/**
+ * v1.22 — paired-day floor for the early window. Lower than the retrospective
+ * `MIN_PAIRED_N` (20) because 21 days cannot reach 20 lagged pairs, but still
+ * high enough that Pearson is defensible. The shorter, noisier series is
+ * counter-balanced by a TIGHTER FDR ({@link EARLY_FDR_Q}) and a no-faint effect
+ * bar (see {@link discoverEmergingCorrelations}), so the early pass keeps a HIGH
+ * firing bar despite the smaller n.
+ */
+export const EARLY_MIN_PAIRS = 12;
+
+/**
+ * v1.22 — tighter Benjamini-Hochberg target for the early window (vs the
+ * retrospective {@link FDR_Q} = 0.10). A short window is noisier, so the early
+ * pass demands a stricter false-discovery rate before it will narrate an
+ * emerging pattern.
+ */
+export const EARLY_FDR_Q = 0.05;
+
+/** Pure: keep only the points on/after `fromDayKey` (inclusive). */
+export function filterSeriesToWindow(
+  series: NamedSeries[],
+  fromDayKey: string,
+): NamedSeries[] {
+  return series.map((s) => ({
+    ...s,
+    points: s.points.filter((p) => p.day >= fromDayKey),
+  }));
+}
+
+/** Stable pair identity for double-count exclusion. */
+function pairKey(behaviour: string, outcome: string): string {
+  return `${behaviour}${outcome}`;
+}
+
+export interface EmergingCorrelationResult {
+  /**
+   * Recent-window pairs that are NOT already established by the retrospective
+   * scan — the genuinely emerging signals. Each is flagged `window: "recent"`
+   * and `provisional: true`.
+   */
+  emerging: DiscoveredCorrelation[];
+  /** Trailing window (days) the early pass scanned. */
+  windowDays: number;
+  /** Paired-day floor enforced for the early pass. */
+  minPairs: number;
+  /** FDR target the early pass used. */
+  fdrQ: number;
+  /** How many pairs were tested in the early window (honest footer). */
+  pairsTested: number;
+}
+
+/**
+ * v1.22 — rolling early-detection pass.
+ *
+ * Re-runs {@link discoverCorrelations} over only the trailing
+ * {@link EARLY_WINDOW_DAYS} days (a lower n floor, a tighter FDR), then keeps
+ * ONLY pairs that:
+ *  1. are not already in the retrospective `discovered` set (no double-count —
+ *     an established pattern is reported once, retrospectively), and
+ *  2. clear a no-`faint` effect bar — over a short, noisy window a faint signal
+ *     is too likely to be transient noise to narrate as "emerging".
+ *
+ * The early window runs its OWN Benjamini-Hochberg control across its OWN tested
+ * family, so FDR discipline holds independently in each pass. Pure — the caller
+ * passes the full series and the day key of the early-window start.
+ */
+export function discoverEmergingCorrelations(
+  fullSeries: NamedSeries[],
+  retrospective: CorrelationDiscoveryResult,
+  opts: {
+    recentFromDayKey: string;
+    windowDays?: number;
+    lagDays?: number;
+    minPairs?: number;
+    fdrQ?: number;
+  },
+): EmergingCorrelationResult {
+  const windowDays = opts.windowDays ?? EARLY_WINDOW_DAYS;
+  const minPairs = opts.minPairs ?? EARLY_MIN_PAIRS;
+  const fdrQ = opts.fdrQ ?? EARLY_FDR_Q;
+
+  const recentSeries = filterSeriesToWindow(fullSeries, opts.recentFromDayKey);
+  const recent = discoverCorrelations(recentSeries, {
+    lagDays: opts.lagDays,
+    minPairs,
+    fdrQ,
+  });
+
+  const established = new Set(
+    retrospective.discovered.map((d) => pairKey(d.behaviour, d.outcome)),
+  );
+
+  const emerging = recent.discovered
+    // High firing bar for the noisier short window: drop faint-tier signals.
+    .filter((d) => d.tier !== "faint")
+    // No double-count: an already-established retrospective pair is reported
+    // once (retrospectively), never re-surfaced as "emerging".
+    .filter((d) => !established.has(pairKey(d.behaviour, d.outcome)))
+    .map((d) => ({
+      ...d,
+      window: "recent" as const,
+      provisional: true,
+    }));
+
+  return {
+    emerging,
+    windowDays,
+    minPairs,
+    fdrQ,
+    pairsTested: recent.pairsTested,
+  };
+}
+
+// ─── v1.22 — labs ↔ outcome correlation ───────────────────────────────────
+
+/**
+ * v1.22 — why labs are NOT a daily-lag channel in the matrix above.
+ *
+ * Lab draws are sparse and irregular (a panel every few months), so a day-D →
+ * day-D+1 lagged Pearson with an n ≥ 20 paired-DAY floor is structurally
+ * unreachable for a biomarker — folding `LAB:*` into `DISCOVERY_*` would only
+ * add channels that always degrade to absent (dead candidates). The clinically
+ * meaningful object for a sparse marker is different: each draw vs the
+ * CONTEMPORANEOUS windowed mean of an outcome the marker plausibly reflects
+ * (HbA1c ↔ the period's mean glucose; lipids ↔ weight). That is a point-vs-window
+ * statistic over the DRAWS (n = number of draws), not a daily lag — so it gets
+ * its own FDR-controlled pass here rather than a forced, never-firing channel.
+ */
+
+/** A single lab draw, day-keyed in the user's tz. */
+export interface LabDrawPoint {
+  /** Stable channel key — `LAB:<analyte>`. */
+  key: string;
+  /** Day key YYYY-MM-DD of the draw. */
+  day: string;
+  /** Numeric reading (qualitative rows are excluded by the caller). */
+  value: number;
+}
+
+/** One discovered lab ↔ outcome association — descriptive, never causal. */
+export interface DiscoveredLabCorrelation {
+  /** `LAB:<analyte>` channel key (display strips the prefix). */
+  lab: string;
+  /** Outcome channel key it tracks with. */
+  outcome: string;
+  /** Number of draws paired with a usable contemporaneous outcome window. */
+  n: number;
+  /** Pearson r across (draw value, contemporaneous outcome window-mean). */
+  r: number;
+  pValue: number;
+  qValue: number;
+  /** Trailing days each draw's outcome window spanned. */
+  windowDays: number;
+  /** Conservative, descriptive interpretation — never causal. */
+  interpretation: string;
+}
+
+export interface LabCorrelationResult {
+  discovered: DiscoveredLabCorrelation[];
+  /** Lab × outcome pairs assessed (honest footer). */
+  pairsTested: number;
+  fdrQ: number;
+  /** Minimum paired-draw count enforced per pair. */
+  minDraws: number;
+}
+
+/**
+ * v1.22 — curated outcome channels a lab biomarker is paired against. Kept
+ * small and physiologically broad (the flagship clinical wins the integration
+ * audit names) so the lab × outcome family stays tight and BH-FDR stays honest:
+ * a biomarker that tracks the period's mean weight, glucose, or systolic BP.
+ */
+export const LAB_OUTCOME_TARGETS: readonly string[] = [
+  "WEIGHT",
+  "BLOOD_GLUCOSE",
+  "BLOOD_PRESSURE_SYS",
+];
+
+/** Default trailing window (days) each draw's outcome mean is taken over. */
+export const LAB_OUTCOME_WINDOW_DAYS = 28;
+
+/** Default minimum draws (paired with a usable outcome window) per lab pair. */
+export const LAB_MIN_DRAWS = 5;
+
+/** Default minimum outcome points inside a draw's window for it to count. */
+export const LAB_MIN_WINDOW_POINTS = 5;
+
+/** YYYY-MM-DD `daysBack` days before `day` (inclusive lower bound). */
+function shiftDayBack(day: string, daysBack: number): string {
+  return shiftDay(day, -daysBack);
+}
+
+/**
+ * Mean of an outcome series over `(drawDay - windowDays, drawDay]` — the period
+ * the marker physiologically reflects. Returns `null` when too few outcome
+ * points fall in the window for a defensible mean. Pure.
+ */
+function outcomeWindowMean(
+  outcome: DailySeriesPoint[],
+  drawDay: string,
+  windowDays: number,
+  minPoints: number,
+): number | null {
+  const lower = shiftDayBack(drawDay, windowDays);
+  let sum = 0;
+  let count = 0;
+  for (const p of outcome) {
+    if (p.day > lower && p.day <= drawDay && Number.isFinite(p.value)) {
+      sum += p.value;
+      count += 1;
+    }
+  }
+  return count >= minPoints ? sum / count : null;
+}
+
+/**
+ * v1.22 — FDR-controlled labs ↔ outcome discovery.
+ *
+ * For each biomarker (grouped by `LabDrawPoint.key`) and each
+ * {@link LAB_OUTCOME_TARGETS} outcome, pair every draw value with the
+ * contemporaneous trailing-window mean of that outcome, then run Pearson + the
+ * exact p-value across the draws. Benjamini-Hochberg controls the lab × outcome
+ * family; the same effect-size floor + James-Stein shrinkage as the daily engine
+ * gate the survivors. A sparse marker simply fails the `minDraws` floor and
+ * degrades to absent — it never fabricates a link. Pure over already-fetched
+ * draws + outcome series.
+ */
+export function discoverLabOutcomeCorrelations(
+  labDraws: LabDrawPoint[],
+  series: NamedSeries[],
+  opts: {
+    windowDays?: number;
+    minDraws?: number;
+    minWindowPoints?: number;
+    fdrQ?: number;
+  } = {},
+): LabCorrelationResult {
+  const windowDays = opts.windowDays ?? LAB_OUTCOME_WINDOW_DAYS;
+  const minDraws = opts.minDraws ?? LAB_MIN_DRAWS;
+  const minWindowPoints = opts.minWindowPoints ?? LAB_MIN_WINDOW_POINTS;
+  const fdrQ = opts.fdrQ ?? FDR_Q;
+
+  // Group draws by biomarker key (newest-irrelevant; Pearson is order-free).
+  const drawsByLab = new Map<string, LabDrawPoint[]>();
+  for (const d of labDraws) {
+    if (!Number.isFinite(d.value)) continue;
+    const list = drawsByLab.get(d.key) ?? [];
+    list.push(d);
+    drawsByLab.set(d.key, list);
+  }
+
+  // Index the curated outcome series by key (last-write keeps a single series
+  // per key even when a channel appears in both roles).
+  const outcomeByKey = new Map<string, DailySeriesPoint[]>();
+  for (const s of series) {
+    if (LAB_OUTCOME_TARGETS.includes(s.key)) outcomeByKey.set(s.key, s.points);
+  }
+
+  interface RawLabPair {
+    lab: string;
+    outcome: string;
+    n: number;
+    r: number;
+    pValue: number;
+  }
+  const tested: RawLabPair[] = [];
+  for (const [lab, draws] of drawsByLab) {
+    for (const outcomeKey of LAB_OUTCOME_TARGETS) {
+      const outcome = outcomeByKey.get(outcomeKey);
+      if (!outcome || outcome.length === 0) continue;
+      const xs: number[] = [];
+      const ys: number[] = [];
+      for (const draw of draws) {
+        const mean = outcomeWindowMean(
+          outcome,
+          draw.day,
+          windowDays,
+          minWindowPoints,
+        );
+        if (mean === null) continue;
+        xs.push(draw.value);
+        ys.push(mean);
+      }
+      if (xs.length < minDraws) continue;
+      const result = pearson({ xs, ys, minPairs: minDraws });
+      if (result.status !== "ok") continue;
+      tested.push({
+        lab,
+        outcome: outcomeKey,
+        n: result.n,
+        r: result.r,
+        pValue: result.pValue,
+      });
+    }
+  }
+
+  const pairsTested = tested.length;
+  if (pairsTested === 0) {
+    return { discovered: [], pairsTested: 0, fdrQ, minDraws };
+  }
+
+  const qValues = benjaminiHochberg(tested.map((t) => t.pValue));
+  const discovered: DiscoveredLabCorrelation[] = tested
+    .map((t, i) => ({ ...t, qValue: qValues[i] }))
+    .filter((t) => t.pValue < 0.05 && t.qValue <= fdrQ)
+    .map((t) => {
+      const shrunkR = shrinkEstimate(t.r, t.n);
+      const tier = confidenceTier(shrunkR, t.n);
+      return { ...t, shrunkR, tier };
+    })
+    .filter(
+      (
+        t,
+      ): t is RawLabPair & {
+        qValue: number;
+        shrunkR: number;
+        tier: ConfidenceTier;
+      } => t.tier !== null,
+    )
+    .map((t) => ({
+      lab: t.lab,
+      outcome: t.outcome,
+      n: t.n,
+      r: t.r,
+      pValue: t.pValue,
+      qValue: Math.round(t.qValue * 1000) / 1000,
+      windowDays,
+      interpretation: interpretLab(t.lab, t.outcome, t.r),
+    }))
+    .sort((a, b) => Math.abs(b.r) - Math.abs(a.r) || a.qValue - b.qValue);
+
+  return { discovered, pairsTested, fdrQ, minDraws };
+}
+
+/** Strip the `LAB:` prefix for display. */
+function humaniseLab(key: string): string {
+  return key.startsWith("LAB:") ? key.slice("LAB:".length) : key;
+}
+
+/** Descriptive, never-causal interpretation for a lab ↔ outcome pair. */
+function interpretLab(lab: string, outcome: string, r: number): string {
+  const l = humaniseLab(lab);
+  const o = humanise(outcome);
+  const dir = r < 0 ? "lower" : "higher";
+  return `Higher ${l} readings line up with ${dir} ${o} over the same periods in your data — an association worth watching with your clinician, never a cause.`;
+}
diff --git a/src/lib/insights/features.ts b/src/lib/insights/features.ts
index efe3fe3ba..5d4c54872 100644
--- a/src/lib/insights/features.ts
+++ b/src/lib/insights/features.ts
@@ -26,6 +26,8 @@ import {
   type CorrelationResult,
 } from "@/lib/analytics/correlations";
 import { getMedicationCategories } from "@/lib/medication-category";
+import { classifyReferenceRange } from "@/lib/labs/reference-range";
+import { resolveLabFields } from "@/lib/labs/serialise";
 import { readRollupBuckets } from "@/lib/rollups/measurement-rollups";
 import {
   ensureUserMoodRollupsFresh,
@@ -197,6 +199,77 @@ export interface AggregatedFeatures {
    * forces the briefing to regenerate. See `computeSignalsOfDay`.
    */
   signalsOfDay?: SignalOfDay[];
+  /**
+   * v1.22 — glucose aggregate block. Glucose previously reached the briefing
+   * only as a single `signalOfDay` row; this is the present-and-trend block the
+   * other vitals already carry (7 / 30 / 90-day means + a 30-day slope), from
+   * the canonical stored value. Omitted when the user has no glucose readings.
+   */
+  glucose?: {
+    avg7: number | null;
+    avg30: number | null;
+    avg90: number | null;
+    latest: number | null;
+    latestDaysAgo: number | null;
+    slope30: number | null;
+    coverage: DataCoverage;
+  };
+  /**
+   * v1.22 — recent FLAGGED biomarkers (abnormal or trending). Closes the
+   * biggest siloed domain: labs reached the Coach snapshot but never the
+   * briefing. Hidden biomarkers (the W3 catalog `hidden` flag) are excluded;
+   * qualitative rows carry a neutral `unknown` status (no fabricated verdict).
+   * Only abnormal / trending markers surface (the briefing-relevant ones) and
+   * the list is bounded. Omitted when nothing is flagged.
+   */
+  labs?: {
+    flagged: Array<{
+      analyte: string;
+      value: number | null;
+      valueText: string | null;
+      unit: string;
+      rangeStatus: "in-range" | "below" | "above" | "unknown";
+      /** Direction vs the immediately prior reading; null without a prior. */
+      trend: "rising" | "falling" | "flat" | null;
+      takenAt: string;
+      daysAgo: number;
+    }>;
+    /** Count of flagged markers (may exceed the bounded `flagged` length). */
+    flaggedCount: number;
+  };
+  /**
+   * v1.22 — preventive-care (Vorsorge) read-side: due + overdue items. The
+   * early-nudge use case ("your screening is overdue"). Previously fully siloed
+   * — captured + scheduled but read by no AI surface. Labels are sanitised
+   * (user free-text). Omitted when nothing is due or overdue.
+   */
+  preventiveCare?: {
+    overdue: Array<{ label: string; daysOverdue: number }>;
+    due: Array<{ label: string; daysUntil: number }>;
+  };
+  /**
+   * v1.22 — workout aggregate. The briefing previously saw activity only as
+   * ACTIVITY_STEPS; the `Workout` table never reached it. Provider-agnostic
+   * counts + load over the trailing windows. Omitted when no workouts logged.
+   */
+  workouts?: {
+    last7: {
+      count: number;
+      totalDurationMin: number;
+      totalDistanceKm: number | null;
+    };
+    last30: {
+      count: number;
+      totalDurationMin: number;
+      totalDistanceKm: number | null;
+    };
+    latest: {
+      sportType: string;
+      daysAgo: number;
+      durationMin: number;
+      distanceKm: number | null;
+    } | null;
+  };
 }
 
 /**
@@ -649,6 +722,267 @@ function computeSignalsOfDay(
     .slice(0, 3);
 }
 
+// ─── v1.22 — cross-signal integration blocks (briefing-scoped) ────────────
+
+/**
+ * v1.22 — the integration blocks (labs / preventive-care / workouts) carry
+ * extra DB reads. They are BRIEFING-scoped: the daily briefing reads a wide
+ * window (`BRIEFING_FEATURE_WINDOW_DAYS`) and narrates long trends, while the
+ * Coach snapshot path calls `extractFeatures` with a tight ~90-day window and
+ * already carries its own labs / illness / workout context. Gating on the read
+ * window keeps these extra reads off every Coach turn without a new caller flag:
+ * the briefing window (400) clears it, the Coach window (90) does not.
+ */
+const INTEGRATION_BLOCK_MIN_WINDOW_DAYS = 180;
+
+/** Days a preventive-care item must be due within to surface as "due soon". */
+const PREVENTIVE_DUE_HORIZON_DAYS = 21;
+
+/** Cap on items surfaced per preventive-care bucket. */
+const PREVENTIVE_MAX_PER_BUCKET = 5;
+
+/** Cap on flagged biomarkers surfaced to the briefing. */
+const LABS_MAX_FLAGGED = 8;
+
+/** Only lab readings within this many months are considered "recent". */
+const LABS_LOOKBACK_MONTHS = 12;
+
+/** Trailing window (days) for the workout aggregate. */
+const WORKOUT_WINDOW_DAYS = 90;
+
+const MS_PER_DAY = 24 * 60 * 60 * 1000;
+
+/**
+ * Strip control chars + collapse whitespace, then bound the length, before a
+ * user-supplied label can reach the briefing prompt. Mirrors the labs /
+ * illness snapshot label handling — a self-scoped prompt-injection surface.
+ */
+function sanitizeLabel(text: string, max = 80): string {
+  let out = "";
+  for (const ch of text) {
+    const code = ch.codePointAt(0) ?? 0;
+    out += code < 0x20 || (code >= 0x7f && code <= 0x9f) ? " " : ch;
+  }
+  return out.replace(/\s+/g, " ").trim().slice(0, max);
+}
+
+/**
+ * v1.22 — recent FLAGGED biomarkers (abnormal or trending) for the briefing.
+ * Most-recent reading per biomarker over the lookback window; hidden markers
+ * excluded; qualitative rows neutral. Only abnormal (below/above) OR trending
+ * markers surface, bounded. Returns `undefined` when nothing is flagged so the
+ * block is omitted rather than emitting an empty shape.
+ */
+async function readLabsBriefingBlock(
+  userId: string,
+  now: number,
+): Promise<AggregatedFeatures["labs"] | undefined> {
+  const nowDate = new Date(now);
+  const cutoff = new Date(nowDate);
+  cutoff.setMonth(cutoff.getMonth() - LABS_LOOKBACK_MONTHS);
+
+  const rows = await prisma.labResult.findMany({
+    where: { userId, deletedAt: null, takenAt: { gte: cutoff, lte: nowDate } },
+    orderBy: { takenAt: "desc" },
+    take: LABS_MAX_FLAGGED * 16,
+    select: {
+      analyte: true,
+      panel: true,
+      unit: true,
+      value: true,
+      valueText: true,
+      referenceLow: true,
+      referenceHigh: true,
+      takenAt: true,
+      biomarkerId: true,
+      biomarker: {
+        select: {
+          id: true,
+          name: true,
+          unit: true,
+          lowerBound: true,
+          upperBound: true,
+          panel: true,
+          hidden: true,
+        },
+      },
+    },
+  });
+  if (rows.length === 0) return undefined;
+
+  // Group rows per biomarker identity (linked id, else lower-cased analyte),
+  // newest-first, so we can read the latest reading + the immediately prior one
+  // for a trend. Hidden markers are dropped entirely.
+  const byMarker = new Map<string, typeof rows>();
+  for (const row of rows) {
+    if (row.biomarker?.hidden) continue;
+    const resolved = resolveLabFields(row, row.biomarker);
+    const key = row.biomarkerId ?? `analyte:${resolved.analyte.toLowerCase()}`;
+    const list = byMarker.get(key) ?? [];
+    list.push(row);
+    byMarker.set(key, list);
+  }
+
+  const flagged: NonNullable<AggregatedFeatures["labs"]>["flagged"] = [];
+  for (const list of byMarker.values()) {
+    const latest = list[0];
+    const resolved = resolveLabFields(latest, latest.biomarker);
+    const rangeStatus =
+      latest.value === null
+        ? ("unknown" as const)
+        : classifyReferenceRange(
+            latest.value,
+            resolved.referenceLow,
+            resolved.referenceHigh,
+          );
+
+    // Trend = latest numeric reading vs the immediately prior numeric reading.
+    let trend: "rising" | "falling" | "flat" | null = null;
+    if (latest.value !== null) {
+      const prior = list.find((r, i) => i > 0 && r.value !== null);
+      if (prior?.value != null) {
+        const delta = latest.value - prior.value;
+        const eps = Math.max(Math.abs(prior.value) * 0.02, 1e-9);
+        trend = delta > eps ? "rising" : delta < -eps ? "falling" : "flat";
+      }
+    }
+
+    const isAbnormal = rangeStatus === "below" || rangeStatus === "above";
+    const isTrending = trend === "rising" || trend === "falling";
+    if (!isAbnormal && !isTrending) continue;
+
+    flagged.push({
+      analyte: resolved.analyte,
+      value: latest.value,
+      valueText: latest.valueText ? sanitizeLabel(latest.valueText, 60) : null,
+      unit: resolved.unit,
+      rangeStatus,
+      trend,
+      takenAt: latest.takenAt.toISOString(),
+      daysAgo: Math.round((now - latest.takenAt.getTime()) / MS_PER_DAY),
+    });
+  }
+
+  if (flagged.length === 0) return undefined;
+  // Abnormal markers lead, then most-recent first.
+  flagged.sort((a, b) => {
+    const abn = (s: typeof a.rangeStatus) =>
+      s === "below" || s === "above" ? 0 : 1;
+    const d = abn(a.rangeStatus) - abn(b.rangeStatus);
+    return d !== 0 ? d : a.daysAgo - b.daysAgo;
+  });
+  return {
+    flagged: flagged.slice(0, LABS_MAX_FLAGGED),
+    flaggedCount: flagged.length,
+  };
+}
+
+/**
+ * v1.22 — preventive-care (Vorsorge) due + overdue read-side. Reads the
+ * user's enabled, live reminders and buckets by the server-authoritative
+ * `nextDueAt`. Returns `undefined` when nothing is due or overdue.
+ */
+async function readPreventiveCareBlock(
+  userId: string,
+  now: number,
+): Promise<AggregatedFeatures["preventiveCare"] | undefined> {
+  const horizon = new Date(now + PREVENTIVE_DUE_HORIZON_DAYS * MS_PER_DAY);
+  const rows = await prisma.measurementReminder.findMany({
+    where: {
+      userId,
+      deletedAt: null,
+      enabled: true,
+      nextDueAt: { not: null, lte: horizon },
+    },
+    orderBy: { nextDueAt: "asc" },
+    take: (PREVENTIVE_MAX_PER_BUCKET + 1) * 4,
+    select: { label: true, nextDueAt: true },
+  });
+  if (rows.length === 0) return undefined;
+
+  const overdue: NonNullable<AggregatedFeatures["preventiveCare"]>["overdue"] =
+    [];
+  const due: NonNullable<AggregatedFeatures["preventiveCare"]>["due"] = [];
+  for (const r of rows) {
+    if (!r.nextDueAt) continue;
+    const label = sanitizeLabel(r.label);
+    if (!label) continue;
+    const diffMs = r.nextDueAt.getTime() - now;
+    if (diffMs < 0) {
+      overdue.push({ label, daysOverdue: Math.round(-diffMs / MS_PER_DAY) });
+    } else {
+      due.push({ label, daysUntil: Math.round(diffMs / MS_PER_DAY) });
+    }
+  }
+  if (overdue.length === 0 && due.length === 0) return undefined;
+  return {
+    overdue: overdue.slice(0, PREVENTIVE_MAX_PER_BUCKET),
+    due: due.slice(0, PREVENTIVE_MAX_PER_BUCKET),
+  };
+}
+
+/**
+ * v1.22 — workout aggregate over the trailing window. Provider-agnostic:
+ * counts + summed duration + summed distance (km, when any source reported it)
+ * over 7 / 30 days, plus the latest workout. Returns `undefined` when no
+ * workouts fall in the window.
+ */
+async function readWorkoutsBlock(
+  userId: string,
+  now: number,
+): Promise<AggregatedFeatures["workouts"] | undefined> {
+  const since = new Date(now - WORKOUT_WINDOW_DAYS * MS_PER_DAY);
+  const rows = await prisma.workout.findMany({
+    where: { userId, startedAt: { gte: since } },
+    orderBy: { startedAt: "desc" },
+    take: 2000,
+    select: {
+      sportType: true,
+      startedAt: true,
+      durationSec: true,
+      totalDistanceM: true,
+    },
+  });
+  if (rows.length === 0) return undefined;
+
+  const tally = (windowDays: number) => {
+    const cutoff = now - windowDays * MS_PER_DAY;
+    let count = 0;
+    let durationSec = 0;
+    let distanceM = 0;
+    let anyDistance = false;
+    for (const w of rows) {
+      if (w.startedAt.getTime() < cutoff) continue;
+      count += 1;
+      durationSec += w.durationSec;
+      if (w.totalDistanceM != null) {
+        distanceM += w.totalDistanceM;
+        anyDistance = true;
+      }
+    }
+    return {
+      count,
+      totalDurationMin: Math.round(durationSec / 60),
+      totalDistanceKm: anyDistance
+        ? Math.round((distanceM / 1000) * 10) / 10
+        : null,
+    };
+  };
+
+  const newest = rows[0];
+  const latest = {
+    sportType: sanitizeLabel(newest.sportType, 40),
+    daysAgo: Math.round((now - newest.startedAt.getTime()) / MS_PER_DAY),
+    durationMin: Math.round(newest.durationSec / 60),
+    distanceKm:
+      newest.totalDistanceM != null
+        ? Math.round((newest.totalDistanceM / 1000) * 10) / 10
+        : null,
+  };
+
+  return { last7: tally(7), last30: tally(30), latest };
+}
+
 export async function extractFeatures(
   userId: string,
   includeRaw: boolean,
@@ -1389,6 +1723,46 @@ export async function extractFeatures(
     features.signalsOfDay = signalsOfDay;
   }
 
+  // v1.22 — glucose aggregate block. Computed from the already-fetched
+  // measurement set (no extra DB read), so it is always cheap to emit. Glucose
+  // previously reached the briefing only as one `signalOfDay` row.
+  const glucoseData = byType("BLOOD_GLUCOSE");
+  if (glucoseData.length > 0) {
+    const summary = summarize(toDataPoints(glucoseData));
+    const newest = glucoseData[glucoseData.length - 1];
+    features.glucose = {
+      avg7: summary.avg7,
+      avg30: summary.avg30,
+      avg90: avgInWindow(glucoseData, now, 90),
+      latest: summary.latest,
+      latestDaysAgo: Math.round(
+        (now - newest.measuredAt.getTime()) / (24 * 60 * 60 * 1000),
+      ),
+      slope30: summary.slope30?.slope ?? null,
+      coverage: computeCoverage(glucoseData, now),
+    };
+  }
+
+  // v1.22 — cross-signal integration blocks (labs / preventive-care /
+  // workouts). Briefing-scoped: only the wide briefing window pays the extra
+  // reads; the tight Coach-snapshot window (which carries its own labs / illness
+  // / workout context) skips them. Each block is omitted when its domain is
+  // empty (no fabricated zeros). Fetched in parallel — independent reads.
+  const includeIntegrations =
+    sinceCutoff === null ||
+    (typeof sinceDays === "number" &&
+      sinceDays >= INTEGRATION_BLOCK_MIN_WINDOW_DAYS);
+  if (includeIntegrations) {
+    const [labs, preventiveCare, workouts] = await Promise.all([
+      readLabsBriefingBlock(userId, now),
+      readPreventiveCareBlock(userId, now),
+      readWorkoutsBlock(userId, now),
+    ]);
+    if (labs) features.labs = labs;
+    if (preventiveCare) features.preventiveCare = preventiveCare;
+    if (workouts) features.workouts = workouts;
+  }
+
   // v1.4.36 W3 T1 — "raw" mode no longer dumps every measurement row
   // into the prompt. Instead we attach DAY / WEEK / MONTH bucket means
   // from `measurement_rollups` so the model gets the same temporal
diff --git a/src/lib/openapi/routes/insights/schemas.ts b/src/lib/openapi/routes/insights/schemas.ts
index d5ee83614..82971e74f 100644
--- a/src/lib/openapi/routes/insights/schemas.ts
+++ b/src/lib/openapi/routes/insights/schemas.ts
@@ -296,9 +296,97 @@ export const discoveredCorrelation = z
       .string()
       .describe("Conservative, descriptive interpretation — never causal."),
     lagDays: z.number().int().describe("Lag in days applied (1)."),
+    window: z
+      .enum(["retrospective", "recent"])
+      .optional()
+      .describe(
+        "v1.22 — which window surfaced the pair. Absent on the 180-day scan (retrospective default); `recent` for an emerging early-detection pair.",
+      ),
+    provisional: z
+      .boolean()
+      .optional()
+      .describe(
+        "v1.22 — true for an emerging recent-window pair: fewer days, hedged as provisional rather than established.",
+      ),
   })
   .meta({ id: "DiscoveredCorrelation" });
 
+// v1.22 — one labs ↔ outcome association (point-vs-window over sparse draws).
+export const discoveredLabCorrelation = z
+  .object({
+    lab: z
+      .string()
+      .describe("`LAB:<analyte>` channel key (display strips the prefix)."),
+    outcome: z
+      .string()
+      .describe(
+        "Outcome channel the marker tracks with (WEIGHT, BLOOD_GLUCOSE, BLOOD_PRESSURE_SYS).",
+      ),
+    n: z
+      .number()
+      .int()
+      .describe("Draws paired with a usable contemporaneous outcome window."),
+    r: z
+      .number()
+      .describe(
+        "Pearson r over (draw value, contemporaneous outcome window-mean).",
+      ),
+    pValue: z.number().describe("Two-sided exact Student-t p-value (< 0.05)."),
+    qValue: z
+      .number()
+      .describe(
+        "Benjamini-Hochberg FDR-adjusted q-value (≤ the surface threshold).",
+      ),
+    windowDays: z
+      .number()
+      .int()
+      .describe("Trailing days each draw's outcome window spanned."),
+    interpretation: z
+      .string()
+      .describe("Conservative, descriptive interpretation — never causal."),
+  })
+  .meta({ id: "DiscoveredLabCorrelation" });
+
+// v1.22 — rolling early-detection result (recent-window emerging pairs).
+export const emergingCorrelationResult = z
+  .object({
+    emerging: z
+      .array(discoveredCorrelation)
+      .describe(
+        "Recent-window pairs NOT already established retrospectively — the emerging signals (provisional, hedged).",
+      ),
+    windowDays: z
+      .number()
+      .int()
+      .describe("Trailing window (days) the early pass scanned."),
+    minPairs: z
+      .number()
+      .int()
+      .describe("Paired-day floor enforced for the early pass."),
+    fdrQ: z
+      .number()
+      .describe("FDR target the early pass used (tighter than the main scan)."),
+    pairsTested: z.number().int().describe("Pairs tested in the early window."),
+  })
+  .meta({ id: "EmergingCorrelationResult" });
+
+// v1.22 — labs ↔ outcome pass result.
+export const labCorrelationResult = z
+  .object({
+    discovered: z
+      .array(discoveredLabCorrelation)
+      .describe(
+        "Lab ↔ outcome associations surviving the per-pair floor + BH-FDR.",
+      ),
+    pairsTested: z.number().int().describe("Lab × outcome pairs assessed."),
+    fdrQ: z.number().describe("The FDR target the pass used."),
+    minDraws: z
+      .number()
+      .int()
+      .describe("Minimum paired-draw count enforced per pair."),
+  })
+  .meta({ id: "LabCorrelationResult" });
+
 export const correlationDiscoveryResponse = z
   .object({
     discovered: z
@@ -313,6 +401,16 @@ export const correlationDiscoveryResponse = z
       .number()
       .int()
       .describe("Minimum paired-day count enforced per pair."),
+    emerging: emergingCorrelationResult
+      .optional()
+      .describe(
+        "v1.22 — rolling early-detection pass over the trailing window; emerging pairs not yet established retrospectively (no double-count).",
+      ),
+    labCorrelations: labCorrelationResult
+      .optional()
+      .describe(
+        "v1.22 — labs ↔ outcome associations (each draw vs the contemporaneous outcome window-mean), FDR-controlled; absent-degrading on sparse draws.",
+      ),
   })
   .meta({
     id: "CorrelationDiscoveryResponse",