Whole-person health, mapped differently
These conditions cluster because they share mechanisms — not because you have bad luck.
Eight pieces of ordinary physiology run underneath eleven diagnoses. Follow the biology, find the overlap, and see your whole body as one connected story.
By Lily Niehaus, MA, CCMA
Follow the map6
shared mechanisms
11
conditions mapped to them
6
intersections explained mechanistically
0
miracle cures sold here
The map
Eleven conditions, eight mechanisms
Every line is a mechanism a diagnosis runs on. Solid lines are primary, dashed lines contribute. Select any label to read it.
The map: eight mechanisms
Every mechanism page teaches the normal physiology first — no condition is named until we reach the point where it diverges. Then it lists every condition that runs on it, so the map reads in both directions.
- 01Connective tissueThe scaffolding that holds every other system in place.Read the mechanism →
- 02Autonomic systemThe automatic controller of heart rate, blood flow, digestion and temperature.Read the mechanism →
- 03Mast cells and immune signallingTissue-resident alarm cells that sit at every barrier in the body.Read the mechanism →
- 04Pain processingPain is produced by the nervous system, not measured by it.Read the mechanism →
- 05Hormonal cyclingA monthly modulator of tissue, immunity, pain and autonomic tone.Read the mechanism →
- 06Sensory processing and interoceptionHow the brain filters the outside world and reads the body from inside.Read the mechanism →
- 07The gut barrierA single layer of cells deciding what gets into the body, in constant conversation with nerves and immune cells.Read the mechanism →
- 08Making and spending energyHow cells produce usable energy — and what happens when demand repeatedly outruns supply.Read the mechanism →
"Persistent pain that disrupts your life is never nothing. The absence of findings on a scan is not the absence of disease."
Eleven conditions, equally weighted
Each page opens by naming the mechanisms it runs on, linked straight back to the physiology. No condition is treated as the center of this site.
Where they intersect
Not "commonly co-occurs with" — each intersection is explained through the mechanism the two conditions share.
- Hypermobility, ADHD and autismShared tissue, shared body-map problem.
- MCAS and endometriosisMast cells sit inside the lesion.
- Endometriosis and POTSPelvic inflammation meets the upright reflex.
- The hEDS, POTS and MCAS trifectaThree diagnoses, three specialists, one matrix.
- Long Covid and POTSThe clearest natural experiment we have.
- Why one body ends up with severalThe argument the rest of this section rests on.
Move
First how these bodies move. Then how to move them.
Proprioception, motor control and joint stability come before any program — because pacing advice given without the mechanism is where most people get hurt.
Open the movement sectionFollow
Short videos on the mechanisms
I post explainers, movement clips and care-navigation reels on Instagram and TikTok — the same whole-person lens, made for scrolling.
The Lily Perspective
Care for the whole person, not just the lesion — or the diagnosis, or the joint, or the referral letter.
Evidence-guided, honest, and built to be revised as the science moves.