Deep Dives › Toxins and Xenobiotics
Taking an exposure history that actually changes something
How to take the exposure history properly when no test will answer the question: a working life rather than a job title, the home, the hobbies nobody volunteers, products, diet and remedies, the timing question that makes it diagnostic, the four settings where measuring genuinely helps, and what a positive history is actually for.
Reviewed by Team SOMA
Last updated August 2026 · English
What you'll be able to do
- âś“A working life, rather than a job title
- âś“The home, and the hobbies nobody volunteers
- âś“Products, diet and remedies — including the ones not thought of as exposures
- âś“The timing question that turns a history into a diagnostic one
- âś“The four settings in which measuring genuinely helps
- âś“What a positive history is actually for
What's inside
Is this for you?
Who it's for
- Anyone with a result in hand who wants the reasoning, not only the conclusion
- People with no medical training - every technical term is explained the moment it appears
- Practitioners who want the thinking behind a number rather than a protocol
What you need
- No prior training. Every technical term is explained in plain words the first time it appears.
- A willingness to read something twice.
About this Deep Dive
When no test will answer the question, the history is the instrument. Taken as a job title and a postcode it produces nothing. Taken properly it is often the only thing that changes what happens next.
What this covers
- A working life, rather than a job title
- The home, and the hobbies nobody volunteers
- Products, diet and remedies — including the ones not thought of as exposures
- The timing question that turns a history into a diagnostic one
- The four settings in which measuring genuinely helps
- What a positive history is actually for
How it is built
Five parts, taken in order: a short orientation, the reading itself, one worked case, a check to see whether it landed, and a page on what changes once you have it. About forty minutes, and it is written to be read twice. There is no certificate here — that is what the Certified Programmes are for.
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