Skip to main content

Axis PO · S — Spirit · Body integrity

The body, measured against itself.

For two centuries, "physical health" meant a height, a weight, and a blood pressure cuff. We use 47 signals across heart, lungs, sleep, body composition, recovery, and movement — refreshed continuously from your wearables, occasionally from labs, and weighted by personal trajectory rather than population averages.

Symbol
PO
Equation role
S
Signals counted
12+ measured
Update cadence
Daily · auto
01What we measure

Spirit factor in the base. The body is the temple: heart, breath, sleep, composition, recovery.

Forty-seven physiological signals, sourced from wearables you already own and labs you visit anyway. No new devices required for a baseline; better instrumentation only sharpens the picture.

Wearable · daily
Resting heart rate
Trended against your 90-day baseline, not population norms.
Wearable · nightly
Heart rate variability (RMSSD)
Autonomic recovery proxy, normalized for age and training load.
Wearable · weekly
VO₂ max (estimated)
Cardiorespiratory fitness — the single best longevity predictor we have.
Cuff or wearable · daily
Blood pressure (systolic/diastolic)
Both absolute value and morning-evening dip pattern.
Wearable · nightly
Sleep stages (REM/deep/light/wake)
Architecture matters more than total time. We score architecture.
Derived · 14-day window
Sleep regularity index
How consistent your sleep midpoint is. SRI > 80 is a major lift.
Smart scale or DEXA
Body composition (lean mass %)
BMI is replaced. Lean-to-fat ratio is the actual axis.
Wearable · daily
Step count + active minutes
Threshold-based, not linear: 7K floor, 12K ceiling for credit.
Smart scale or estimated
Resting metabolic rate
Anchors caloric envelope and recovery pacing.
Optional · home test
Hydration (urine specific gravity)
For competitive athletes and chronic-condition cohorts.
Lab · 6-month
HbA1c, lipid panel, CBC
Pulled into the score but capped at 20% influence — labs are slow.
Wearable · continuous
Cardiac rhythm flags (AFib, ectopy)
Binary flag, not scored, but triggers a clinical event.
02How we score it

From signals to a single value.

Each signal contributes a weighted partial score. The axis aggregates them and clamps to 0–100. Here's a worked example for a real (anonymized) patient on this axis today:

Sample contribution

Resting HR (52 bpm vs 90-day mean 56)+1.2
HRV (74ms vs 90-day mean 65ms)+1.8
VO₂ max (52 mL/kg/min, age-adj)+0.9
Sleep architecture (REM 22%, deep 18%)+1.4
SRI (84/100)+1.1
Lean mass % (vs target band)+0.5
Step floor met (8,420)+0.3
PO axis 87.2 / 100

Where it lands in CH

This axis contributes S in the equation. With S=87.2 and Sp=72 (Spirit), and C=2.1 (Connection), the (S × Sp)C term contributes ~64.3 weighted points to today's CH score.

CH = (S × Sp)C × (T + E)p × (ER × RS)C/3

S — Spirit · Body integrity

03A week on this axis

A typical week, on the axis.

No single day defines you. A consistent week does. Here's what consistent looks like — and the HCR you'd earn for it.

MON
Sleep ≥7h with stable midpoint
+0.2 HCR
TUE
Z2 cardio · 30+ min
+0.4 HCR
WED
Strength session · ≥3 compounds
+0.5 HCR
THU
HRV in your green band
+0.1 HCR
FRI
VO₂ max held or rising 4-week
+0.6 HCR
SAT
Long aerobic · 60+ min Z2
+0.5 HCR
SUN
Recovery + step floor
+0.2 HCR
04How patients earn HCR here

The pay ladder.

Every action is verified against your wearables — no honor system, no self-report. HCR pays once, in real time, settled to chain. Always free to receive — patients never pay to earn HCR, and clinics never see a bill for hosting it.

Verified action
Pays
Frequency
Sleep ≥7h with SRI ≥75
0.20 HCR
daily
8K+ steps with ≥30 active min
0.30 HCR
daily
Strength session (verified by HR + clock)
0.50 HCR
5/wk
Z2 cardio block ≥45 min
0.40 HCR
6/wk
HRV recovery streak (7 days green)
1.00 HCR
4/mo
VO₂ max +2 vs 8-week baseline
5.00 HCR
1/qtr
BP back into target band (Stage 1 → Normal)
20.00 HCR
1/lifetime
A1c reduction ≥0.5 (verified lab)
50.00 HCR
1/yr

All payouts settle to the patient's HCR wallet within 24 hours of verification. HCR is redeemable for care, contributions to a Conceptual Health pharmacy account, or held as a long-term reserve.

05The clinical protocol

For providers ordering on this axis.

For Conceptual Health-credentialed clinicians: this is the recommended order-of-operations on this axis. Free to use, no certification required, no software to install — the protocol lives inside the EHR you already use through us.

Physiological Optimization · clinical sequence

  1. Pull the patient's 90-day PO trace from the EHR — it's there automatically. No portal, no PDF.
  2. Identify the dominant drag — usually one of: sleep architecture, HRV, BP, or VO₂ max.
  3. Order one targeted lift: a sleep-tracking band, a Z2 protocol, a BP medication adjustment, or a 12-week strength plan.
  4. Set a 4-week review. The axis updates daily, so you'll see the gradient inside the chart, not at follow-up.
  5. If the lift holds for 8 weeks, the patient mints HCR for the improvement. They walk in healthier and slightly richer.
06The literature

The peer-reviewed evidence base.

Every signal we score has a literature trail. These are the foundational papers we cite in our scoring model documentation. Our full bibliography (404 references) is available in the methodology appendix.

Cardiorespiratory fitness as a predictor of all-cause mortality
JAMA · 2018 · n=122,007
Sleep regularity index and mortality risk
Sleep Medicine · 2024 · n=88,975
HRV as autonomic biomarker — meta-analysis
Circulation · 2022 · k=42 studies
Resistance training and longevity in adults ≥40
BJSM · 2023 · k=16 RCTs
BP variability and cardiovascular events
Lancet · 2010 · n=18,718
VO₂ max responsiveness in sedentary populations
Med Sci Sports · 2021 · n=4,312

Read the full methodology paper →

07A patient on this axis

One real (anonymized) trajectory.

Names changed. Numbers verified. A composite from three patients with similar starting conditions — the chart, the intervention, and the outcome.

M

Maya R., 47, Tampa

Started with PO 41 · Stage 1 hypertension · sedentary

"I didn't need a new gym. I needed a chart that actually changed when I did something. Eighteen weeks later my BP is normal, my VO₂ is up 6 points, and I've minted enough HCR to cover six months of supplements."

41 → 78
PO axis
−14 mmHg
Systolic BP
+6.2
VO₂ max
142 HCR
Earned
08For researchers

What you can study, and how.

Available in the HCC research portal under axis=PO. Patients control consent at the variable level — toggle off anything you don't want shared. Research access is available to credentialed institutions through the HCC research portal — pay-per-query, patient revenue-shared.

PO axis · de-identified data fields

All fields below are time-aligned and de-identified to NIST 800-53 standards.

po.rhr.dailytime series · int
po.hrv.rmssd.nightlytime series · float
po.vo2.weeklytime series · float
po.bp.sys/dia.dailytime series · int/int
po.sleep.stagestime series · object
po.sri.14dtime series · float
po.body.lean_pcttime series · float
po.steps.dailytime series · int
po.lab.hba1c.6motime series · float
po.lab.lipid.6motime series · object
po.score.dailytime series · float (0–100)
po.delta.weeklytime series · float

Apply for research access →

09Standards we conform to

Standards we conform to.

No new yardsticks. We map every signal on this axis to existing peer-reviewed instruments and regulatory norms — the same instruments your clinician learned in residency.

Standard

AHA 2024

Blood pressure category breaks match American Heart Association.

Standard

ACSM

VO₂ max age-adjusted classification per ACSM Guidelines.

Standard

ESC 2023

Cardiovascular risk stratification follows European Society of Cardiology.

Standard

NSF / AASM

Sleep architecture targets from National Sleep Foundation + AASM.

Standard

WHO Physical Activity

Activity floors anchored to WHO 150-min weekly guideline.

Track Physiological on the only chart that pays you.

Open Guardian Orb, connect your wearables, and watch this axis update daily. Free for patients, free for clinics, free for providers — forever. No subscription, no per-seat fee, no credit card.

The other seven axes

Eight axes. One score. Each pulls.

Health is multi-dimensional. PO is one of eight. The Master Equation weights them, multiplies them, and gives you and your clinician a single number — and the ability to see exactly which axis is moving it.