Load
The demands carried over time: genetics, illness, environment, stress, habits and accumulated exposures.
A physician-created health framework
The Aging Funnel™
A clearer way to discuss the forces shaping health now—and the reserve that may help protect future options.
Why it exists
Aging is not one number.
Health changes through interacting systems, not a single laboratory value or calendar age. Dr. Michael Hall developed the Aging Funnel to organize a complex clinical story into four patient-facing domains: Load, Signal, Fuel and Capacity.
The framework is not a diagnosis, risk calculator or replacement for established medical screening. It is a way for physician and patient to connect history, measurements, function and goals—then decide what deserves attention.
The four domains
Signal
What the body is communicating through symptoms, biomarkers, hormones, inflammation, imaging and other observations.
Fuel
The resources available for maintenance and repair, including nutrition, metabolism and body composition.
Capacity
The reserve that supports function: strength, cognition, sleep, recovery, resilience and the ability to adapt.
In practice
From scattered information to a better conversation.
- 01
Establish context
Start with the person: medical history, current concerns, goals, existing care and functional priorities.
- 02
Choose meaningful measures
Select observations and tests because they can clarify a decision—not simply because they are available.
- 03
Follow the trajectory
Review compatible measurements over time and reassess whether the strategy is producing value.
The digital expression
Meet WellSkor AI.
WellSkor AI is the preproduction platform built to make longitudinal context, evidence coverage and clinician-guided interpretation easier to see in one evolving view.
Explore WellSkor AIBegin with your health story