What is autism?

Autism is a lifelong neurodevelopmental difference that shapes how a person communicates, thinks, and experiences the world.

Overview

Autism is a lifelong neurodevelopmental difference that shapes how a person experiences the world, communicates, processes information and relates to other people. It is not an illness and there is nothing to 'cure' — autistic brains are wired differently, and that difference brings both strengths and challenges. Around 1 in 100 people in the UK are autistic (NHS estimate, 2024), and many more are still undiagnosed, particularly women, girls and adults.

Key points to understand

Autism is a spectrum: no two autistic people are the same — strengths, support needs and personality vary enormously.
It is present from birth, even if it is only recognised later in life.
Autism is diagnosed based on differences in social communication, social interaction, and the presence of restricted or repetitive behaviours, interests or sensory differences (DSM-5 / ICD-11).
It often co-occurs with ADHD, dyslexia, dyspraxia, anxiety, learning disability, epilepsy or gastrointestinal issues.
Autistic people may identify as 'autistic', 'on the spectrum' or 'neurodivergent' — always follow the individual's language preference.

Practical strategies that help

Learn the individual's profile (sensory likes/dislikes, communication style, special interests) rather than relying on stereotypes.
Use clear, literal language and allow extra processing time.
Reduce sensory overload — lower lighting, quieter rooms, advance notice of change.
Build on strengths and special interests as motivators.

Common challenges to be aware of

Masking (hiding autistic traits to fit in) is exhausting and linked to burnout and poor mental health.
Many services still expect autistic people to adapt to neurotypical norms; a better goal is mutual adaptation.

How Bright Steps can help

Bright Steps brings together autistic people, families, carers and professionals across the UK. You can use the Community to talk to others who get it, save articles and activities to your Library, and explore Resources built for everyday life. Our Routines and Reward Charts turn ideas from this article into things you can try today.

💡 Tip: Bookmark this article using the Save button at the top so you can come back to it. Everything you save lives in your personal library under Saved.

References & further reading

✏️ 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.