Most parents already know some of their child's triggers. A diary is for the ones you don't see yet, and for the mix. It is rarely one thing: it is a short night plus a loud shop plus a late lunch.
When we tagged 409 public posts by parents of autistic children, 47% were about hunting for triggers. A diary is the cheapest tool for that hunt.
What to write down
After each meltdown, take one minute. Also write down near-misses: the times you saw it building and it passed. Near-misses teach the most, because they show what worked.
| What | Example |
|---|---|
| Date and time | Tuesday, 16:40 |
| Where, and who was there | Supermarket, with mom |
| Sleep last night, nap today | About 9 hours, no nap |
| Last meal and drink | Lunch at 12:00, little water |
| Noise, light, crowd | Loud music, busy |
| Changes to the routine | New teacher at school |
| Signs before | Covered ears, paced |
| What helped | Car, quiet, snack |
| How long it lasted | About 10 minutes |
Two more rules:
- Log calm days too. A diary of bad days only can't show what good days have in common.
- Write it the same day. Memory rewrites the story by the evening of the next day.
How long until you see a pattern
Count episodes, not days. In our own pilot plan we expect to need about 15 labelled episodes before any pattern is worth trusting. If your child has about one a week, that is 6 to 8 weeks. Knowing this in advance helps: a long collection is normal, not a failure.
Reading it with an AI assistant
You can paste your log into ChatGPT, Claude or another assistant and ask it to find patterns. It is good at counting and comparing across many rows. A few rules keep it safe and useful:
- Remove what identifies your child. No names, school, address or medical record numbers. "My child" is enough.
- Ask for patterns, not a diagnosis. You want to know what shows up before episodes, not what is "wrong".
- Ask for the counts. Make it show how many episodes support each pattern, so you can check it.
- Treat the answer as a guess to test. Try one change for a week, then look again.
- Share it with your child's therapist. A speech therapist, OT or behaviour therapist can tell you what the pattern means for your child.
A prompt you can copy:
Here is a log of my child's meltdowns and calm days.
1. Which conditions appear most often in the 3 hours before an episode?
2. What is different on calm days?
3. For each pattern, show how many episodes support it.
4. Suggest one change to test for one week.
Do not diagnose. If the data is too small to say, tell me.
Small logs can produce patterns that are not real. That is why the counts matter.
What a diary can't see
A diary sees the day. It can't see the minutes before a meltdown, when the body changes before behaviour does: heart rate, skin conductance, movement. Studies have measured that in hospitals and classrooms, but not at home. That is the gap Emozu is working on. More in Can you see a meltdown coming? and on our research page.
This article is general information, not medical advice.