Six-Domain Health Capacity Model

Vitality Six

A six-domain health capacity model for measuring how the body functions, recovers, adapts, and ages.

Move beyond a single health score. Understand the six core capacities that shape healthspan.

Vitality Score | Average of the six domains

76 /100

Calculated as the average of the six domain scores so first-time visitors can understand the model at a glance.

Formula: mean of the six domain scores. Useful as a summary, but not a substitute for the full profile.

Objective-first Multi-source Longitudinal by design

Illustrative Vitality Profile

Educational example only, not a medical result.

Six-domain view

Positioning

What Is Vitality Six?

Vitality Six is a framework for describing health as a set of six measurable capacities rather than a single vague number. Instead of asking only whether a person is healthy or unhealthy, the model asks six clearer questions: Can the body deliver oxygen well? Handle fuel and nutrients well? Move well? Recover well? Think and connect well? Maintain system-wide resilience over time?

The model is designed to combine objective signals from wearables, home devices, clinical tests, labs, imaging, medical history, and structured self-report. Its purpose is not to replace diagnosis. Its purpose is to organize health information into a structure that is understandable, comparable over time, and useful for future scoring.

Design logic

Why Six Domains?

Six is a product and measurement choice, not a law of biology.

The top layer is intentionally simple. The data underneath can be deep.

01

Fewer than six is too coarse

With too few dimensions, cardio, metabolism, recovery, mood, and systemic resilience collapse into one number that is hard to act on.

02

More than six becomes harder to remember

Too many dimensions weakens interpretability and makes the model harder for most people to understand, compare, and follow over time.

03

Six stays simple without hiding system differences

Six allows the model to stay visually simple while still separating cardiovascular capacity, metabolic function, movement, recovery, neuro-emotional-social function, and whole-system resilience.

Architecture

How the Model Works

Vitality Six uses a layered structure: raw inputs flow into metric groups, metric groups become six domain scores, and the six-domain pattern becomes a Vitality Profile that can later support a Vitality Score or Health Capacity Index.

1

Raw inputs

Wearables, vitals, lab values, imaging, performance tests, questionnaires, genetic risk, and clinical history.

2

Metric groups

Related variables are organized into subdomains so the model keeps clinical meaning without overwhelming the interface.

3

Domain scores

Each of the six domains reflects a core capacity, not a single lab marker or device reading.

4

Overall profile

The six-domain pattern becomes a Vitality Profile and can later support a consumer-facing Vitality Score or a more technical Health Capacity Index.

Core capacities

The Six Domains

Plain-language summaries come first. Raw variables come second. The section below is designed for progressive disclosure.

Multi-source inputs

What Data Can Be Used?

Vitality Six is designed to be multi-source. It can accept passive data, active self-report, home measurements, clinical tests, medical records, genetics, and advanced biomarker layers. Not every user will have every data type.

Rollout tiers

Suggested Data Completeness Tiers

Collection paths

How Data Is Collected

The same model can combine synced devices, manual entry, clinical tests, performance assessments, questionnaires, and low-frequency advanced layers such as genetics or omics.

Context layer

Context and Modifiers

Not every important signal should appear as a seventh domain. Some inputs are better treated as context, modifiers, constraints, or interpretation layers.

Interpretation

How to Read a Profile

01 Current shape

Which capacities are strong, average, or under strain

Start with the shape of the profile instead of a single score. The pattern across domains is the actionable signal.

02 Pattern

See whether strain clusters in a system

Recovery plus metabolism weakness tells a very different story from a cardio-plus-systemic resilience pattern.

03 Trend

Track whether the same person is improving, stable, or worsening

The model is designed for longitudinal use. Direction often matters more than a single point estimate.

A score matters. A profile matters more.

Boundaries

What This Is and Is Not

This is

A structured health capacity model

It organizes measurable health signals into six core capacities that can be understood, compared over time, and eventually scored.

This is not

Not a diagnosis engine or lifespan predictor

It is not a medical diagnosis, not a substitute for professional care, and not a direct prediction of how long someone will live.

Clarifications

FAQ

Bilingual terms

Global Glossary

The English naming system is the source language. Chinese works as a reference translation for tooltips, descriptions, and product copy.