Maybe you've had moments where everything became too much and you lost control, or went completely blank and couldn't speak. Afterwards you might have felt exhausted, embarrassed, or confused about what happened.

If this sounds familiar, you're not alone. Meltdowns and shutdowns aren't a character flaw, and they're not something you chose. This article explains what they are, and some options that may help.

What meltdowns and shutdowns are

Both are responses to being overwhelmed. Leicestershire Partnership NHS Trust describes them as happening when an autistic person is overloaded by too much information at once, whether sensory, emotional or social information (Leicestershire Partnership NHS Trust).

  • A meltdown is an outward loss of control, which might be verbal, physical or both. It's often compared to a "fight" response.
  • A shutdown is more inward. You might go quiet, numb, unresponsive or unable to speak. It's often compared to a "freeze" response.

The same NHS trust is clear that these are not tantrums. A meltdown isn't aimed at getting something, and the person can't simply stop it.

Meltdown or shutdown?

Everyone's different, and some people experience a mix of the two. This is a rough guide, not a checklist.

MeltdownShutdown
DirectionOutwardInward
What it can look likeVerbal or physical, such as shouting or sudden movementGoing quiet, unresponsive or withdrawn
SpeechMay be loud, or hard to controlMay become difficult or stop
How it can feelFlooded, out of controlNumb, blank, far away
What often helpsSpace, less input, no demandsQuiet, time, no pressure to respond

Why they happen

Meltdowns and shutdowns usually build from several things adding up, rather than one small trigger (Leicestershire Partnership NHS Trust). Common contributors include sensory overload, social situations, sudden change, and unmet basic needs like hunger, thirst, tiredness or pain.

Say it's Friday. You've had a busy week at work, skipped lunch, and the train home is packed and delayed. Then a friend calls to change your plans for the evening. On its own, the phone call is small. On top of everything else, it might be the thing that tips you over.

Early signs

Many people show signs of distress before a meltdown or shutdown. Learning your own can give you a chance to step away sooner.

What can help

These are options, not rules. Take what fits.

If you're supporting someone

If someone you know is having a meltdown or shutdown, the NHS trust's guidance suggests:

  • stay calm and don't judge or get angry
  • let them know you're there
  • avoid asking questions or giving instructions
  • reduce noise and other sensory triggers where you can
  • give them space and time to recover afterwards

The most useful step often happens beforehand. When they're calm, ask what helps them and what doesn't. Some people want company, and some want to be left alone.

References

  1. Lewis, L. F., & Stevens, K. (2023). The lived experience of meltdowns for autistic adults. Autism, 27(6), 1817–1825. doi.org/10.1177/13623613221145783
  2. Leicestershire Partnership NHS Trust. Understanding autistic meltdowns and shutdowns. Autism Space. leicspart.nhs.uk