Deep Dives › Longevity
Building a panel worth repeating: markers, intervals, and reading a trajectory
How a small longevity panel is actually built: what each marker adds that the others do not, what stays off it and why, how the interval for each is set, what makes two years' values comparable, and how to tell a real trajectory from one unusual day.
Reviewed by Team SOMA
Last updated August 2026 · English
What you'll be able to do
- âś“What each marker adds that the others do not
- âś“What stays off the panel, and why the omission is the discipline
- âś“How the interval for each marker is set, and why one interval for everything is wrong
- âś“What has to be held constant for two years of values to be comparable
- âś“Telling a real trajectory from one unusual day
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
A large one-off panel produces a snapshot and a great many numbers to explain. A small panel repeated on a fixed interval produces a trajectory, which is the only thing that answers whether anything is working.
What this covers
- What each marker adds that the others do not
- What stays off the panel, and why the omission is the discipline
- How the interval for each marker is set, and why one interval for everything is wrong
- What has to be held constant for two years of values to be comparable
- Telling a real trajectory from one unusual day
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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