Method guide
Is it really a trigger, or just a coincidence?
A real trigger appears next to bad days noticeably more often than next to good ones — usually at least twice across two weeks, and rarely on calm days. One co-occurrence is a guess. Three is a candidate. Five is hard to ignore.
Why this distinction matters
Once you start tracking, you'll spot apparent triggers quickly. Most of them are coincidences — your brain is wired to over-detect patterns when you're feeling unwell. Knowing how to filter noise from signal is the difference between useful insight and a lifestyle you've over-restricted for no reason.
The three-bar test
Before you accept a candidate trigger, run it through three quick checks. If it passes all three, it's worth a focused follow-up week. If it fails any of them, hold the theory loosely.
- Repetition: did this factor appear next to a bad day at least twice in 14 days?
- Asymmetry: does it appear far less often next to good days than next to bad ones?
- Plausibility: is there a reasonable mechanism — sleep, stress, exertion, environment — connecting it to the symptom?
Common false positives
Some patterns look real but almost never are. Watch out for triggers that only ever appear next to bad days because you only ever notice them then — like a specific weather condition you remember on day 12 but ignored on day 4.
- The thing you only noticed once you had a theory.
- The thing that's present every single day (it can't differentiate good from bad).
- The thing that only shows up because the bad day made you do it (e.g. extra coffee).
- The thing you read about online the night before.
How to confirm a candidate
Once a factor passes the three-bar test, run a focused 7-day follow-up watching only that one variable. Don't change anything else. The full method is in [how to find your personal triggers](resource:how-to-find-your-personal-triggers).
When to let a theory go
If a candidate fails its follow-up week, drop it. Holding onto rejected theories is the single fastest way to make tracking miserable. Log the rejection and move on — eliminating a wrong answer is real progress.
Key takeaways
- One co-occurrence is a guess; two is a candidate; three is a real lead.
- Triggers should appear less often on good days, not just often on bad days.
- Run a focused follow-up week before changing anything in your life.
- Rejecting a wrong theory is real progress — log it and move on.
Frequently asked questions
What's the minimum number of days I need?
Two weeks of consistent logging usually gives enough data to apply the three-bar test. Less than that and you're working with anecdote.
What if multiple triggers appear at once?
Pick the one with the strongest asymmetry first and test it alone. Stacking changes makes it impossible to learn anything.
Does Your Body Signal do this for me?
Yes — the 14-day insight engine highlights the strongest pattern in your data and tells you how confident the signal is.
Is this medical advice?
No. It's a framework for reading your own data — it does not diagnose or replace medical care.