Overview
Anxiety is the most common co-occurring condition with autism — affecting around 40–50% of autistic people. Causes are often environmental (sensory overload, unpredictability, social demand) as well as biological.
Key points to understand
- Common presentations: avoidance, perfectionism, controlling routines, sleep difficulties, GI problems, rumination.
- Generalised anxiety, social anxiety, OCD, health anxiety and PTSD all co-occur with autism.
- Standard CBT may need adapting (more concrete, more visual, slower pace).
- Anxiety often increases at transitions (school year, term, life stage).
Practical strategies that help
- Reduce demands and increase predictability.
- Use visual schedules and now/next boards.
- Build interoception awareness (notice physical anxiety signs early).
- Consider neurodiversity-affirming therapy — see the NAS therapist directory.
Common challenges to be aware of
- Untreated anxiety drives much of what looks like 'behaviour' — treat the anxiety, the behaviour follows.
- Medication (SSRIs) can help; autistic people may need lower starting doses.
How Bright Steps can help
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References & further reading
- National Autistic Society — Behaviour
- Challenging Behaviour Foundation
- NICE Guideline NG11 — Challenging behaviour
✏️ This article will be expanded with rich, UK-specific content, case studies, video explainers and downloadable resources. If you'd like to contribute a story or suggest a correction, contact the Bright Steps editors via the Community page.
