This is educational content, not medical advice. If you have a health condition or take medication, speak to your GP before changing your diet, fasting pattern, or lifestyle.
MECHANISM ENGINE
The WMTWL Mechanism Dictionary

Every article on this site eventually runs into the same handful of words. Insulin. HbA1c. Cortisol. Rather than explain each one from scratch every single time, here they are, once, properly, in plain English, with the actual mechanism and one analogy that should make it stick.
These pages aren’t a diagnosis and they aren’t a treatment plan. They’re the dictionary. Twenty-six concepts, the ones that come up again and again across sleep, fasting, biomarkers, and the rest of the library. If an article mentions a term you don’t recognise, there should be a link straight to it here.
This isn’t Neil’s personal data, that lives on the Proof pages and the Living Lab. This is the background knowledge that makes sense of it.
Blood Sugar & Insulin
- Insulin
- Insulin Resistance
- Glycogen
- Blood Glucose
- HbA1c
- Ketosis
- Fasting States (Fed vs Fasted)
- Metabolic Flexibility
- Fat Oxidation
Cholesterol & Liver
Hunger & Weight Signals
Inflammation & Recovery
Sleep Architecture & Timing
Stress & the Nervous System
Ageing & Movement
Get the Blood Test Decoder, a plain-English guide to reading your own results alongside these pages.
