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Body Insights

Trends, baseline corridors and peer percentiles across 25 indices

The ledger has 0 recorded days. Charts appear as days accumulate: the robust corridor stabilises around 8 days, and the Mann–Kendall trend test only reports from 5 days. Peer percentiles work from day one because they come from published cohorts, not your history. Keep the phenotype calendar open while streaming to log days automatically.

AI scale insights are switched off

Turning it on lets this page send a de-identified summary of your trend statistics — channel names, latest values, baselines and slopes — for interpretation, and returns a written review. Raw dated readings are not included; an optional question is sent as written.

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Where you are moving

Improving

No statistically supported improvement in this window.

Declining

Nothing is deteriorating with statistical support.

Ranking is Kendall's τ weighted by (1 − p), so a small consistent drift outranks a large noisy swing. Slopes are Theil–Sen medians — one outlier day cannot rotate them.

Mass-Flux Twin indices over time

0 days

Needs at least two ledger days carrying a scale snapshot. Log a reading on the Mass-Flux Twin page — the snapshot then carries forward until a new weigh-in supersedes it.

Cardiac transport

How hard the pump works at rest, and how much headroom is left above it.

Resting HR

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no days recorded yet
  • no published peer norm — personal baseline only

Day mean HR

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no days recorded yet
  • no published peer norm — personal baseline only

HR reserve used

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no days recorded yet
  • no published peer norm — personal baseline only

VO₂max estimate

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no days recorded yet
  • no published peer norm — personal baseline only

Autonomic balance

Vagal tone and sympathetic load — the first system to move when something is wrong.

RMSSD

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no days recorded yet
  • no published peer norm — personal baseline only

HRV instability

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no days recorded yet
  • no published peer norm — personal baseline only

Stress index

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no days recorded yet
  • no published peer norm — personal baseline only

Skin temperature

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no days recorded yet
  • no published peer norm — personal baseline only

Oxygen & ventilation

Saturation floor and breathing pattern — respiratory and altitude/apnoea signals.

Mean SpO₂

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no days recorded yet
  • no published peer norm — personal baseline only

SpO₂ floor

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no days recorded yet
  • no published peer norm — personal baseline only

Respiration

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no days recorded yet
  • no published peer norm — personal baseline only

Breath variability

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no days recorded yet
  • no published peer norm — personal baseline only

Metabolic & mass

Energy turnover, hydration and the tissue the scale measured it against.

Energy turnover

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no days recorded yet
  • no published peer norm — personal baseline only

Glycaemic drift

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no days recorded yet
  • no published peer norm — personal baseline only

Hydration

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no days recorded yet
  • no published peer norm — personal baseline only

Fat-free mass

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no days recorded yet
  • no published peer norm — personal baseline only

Recovery & load

Sleep repayment versus movement load — the balance that decides tomorrow.

Sleep debt

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no days recorded yet
  • no published peer norm — personal baseline only

Steps

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no days recorded yet
  • no published peer norm — personal baseline only

Steps per 1000 kcal

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no days recorded yet
  • no published peer norm — personal baseline only

Observation coverage

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no days recorded yet
  • no published peer norm — personal baseline only

Lead–lag coupling map

Cross-correlation of every KPI pair across ±3 days. This is what a single-metric chart cannot show: which channel in your body moves first, with the delay measured rather than assumed.

Needs at least eight overlapping days per pair before any relationship is strong enough (|r| ≥ 0.5) to report.

How to read these charts

  • Filled band — your robust corridor: median ± 1.4826·MAD over the window (Rousseeuw & Croux 1993), the same estimator the daily fingerprint scores against.
  • Hatched band — the age- and sex-matched peer corridor (cohort mean ± 1 SD) from the published study named under each KPI.
  • Dashed diagonal — Theil–Sen trend (Sen 1968); τ and p come from the tie-corrected Mann–Kendall test (Mann 1945), so direction is only claimed when the rank evidence supports it.
  • Vertical dashes — a CUSUM change point (Page 1954): the day your level stepped, which a slope alone would smear away.
  • Hollow dots — days built from low-confidence or replayed frames; they are drawn, never silently dropped.

Wellness analytics over your own data. Not a medical device and not a diagnosis — take persistent signals to a clinician.

Evidence alerts

BH-FDR thr 0.0500

Fires when the confidence behind a KPI collapses, or when the driving-day pattern makes a change statistically significant across the 20 loci.

  • Nothing anomalous. Every KPI is above the confidence floor and no change clears the corrected threshold.