Before I worked with neurodivergent individuals, I thought I understood sensory overload. I’d read about it. I could define it clinically.

Then I spent time actually listening to people describe what it feels like from the inside and I realised I’d only understood the surface.

What sensory overload actually is

Our nervous systems are constantly processing information from the world around us light, sound, smell, touch, movement, temperature, and even the internal sensations of our own bodies. For most people, this processing happens in the background, largely without effort.

For many neurodivergent individuals, it doesn’t.

Sensory information can arrive louder, more intensely, or in ways that are difficult to filter or organise. The hum of a fridge, the label in a school shirt, the smell of someone’s lunch three desks away, the slight flicker of fluorescent lighting these aren’t minor irritants. They are active demands on the nervous system, and they stack.

Overload happens when the input exceeds what the nervous system can comfortably process. And it doesn’t always look dramatic from the outside.

What it can look like

Sometimes overload looks like a meltdown a complete loss of emotional and physical regulation that frightens the people around it and leaves the person feeling deeply ashamed afterwards.

But often, it looks much quieter than that:

• A child who becomes suddenly flat or withdrawn after school
• An adult who can’t form sentences properly by 7pm
• Someone who seems “fine” at work but can’t speak when they get home
• A young person who refuses to go to the supermarket for no apparent reason
• Headaches. Tears with no clear cause. The need to lie in a dark, quiet room just to feel human again.

This is shutdown and it’s just as real as a meltdown, just less visible.

The message behind the signal

Here’s the thing I most want families, teachers, and carers to understand: sensory responses are not behaviours to be eliminated. They are communication.

When a child pulls their hood up, covers their ears, or refuses to enter a school hall, they aren’t being awkward or difficult. They are telling you, with the tools available to them, that their nervous system is overwhelmed.

When an adult leaves a party earlier than expected, goes quiet in a loud restaurant, or needs the weekend to recover from a busy week that isn’t antisocial behaviour. That is a nervous system doing exactly what it needs to do to protect itself.

The goal of occupational therapy in this space isn’t to train people out of their sensory responses. It’s to help them and the people around them understand what those responses mean, what environments and adjustments make life more manageable, and how to build daily routines that reduce unnecessary overload before it accumulates.

Practical things that can genuinely help

Everyone’s sensory profile is different, so this isn’t a one-size-fits-all list. But some of the most common and effective strategies we explore with clients include:

Understanding triggers. Knowing which senses are most sensitive and in which environments helps families and individuals make informed adjustments rather than constantly guessing.

Building in recovery time. If school or work is highly demanding sensorially, factoring in quiet, low-demand time afterwards isn’t indulgence. It’s maintenance.

Sensory diets. These are personalised programmes of sensory input designed to help regulate the nervous system throughout the day not just in response to overload, but proactively.

Environmental adjustments. Sometimes small changes different lighting, seating options, noise-reducing headphones, clothing without irritating seams make an enormous difference to daily comfort and capacity.

Language and communication tools. Helping individuals name and communicate their sensory experiences means they are less likely to reach crisis point before anyone realises they’re struggling.

A final thought

I believe, genuinely, that being neurodivergent is not something to fix. A sensitive nervous system is not a flaw it’s a different way of experiencing the world, with its own challenges and its own richness.

Our job at Onyx isn’t to make neurodivergent people more comfortable for a neurotypical world. It’s to help them understand themselves, advocate for what they need, and find environments and strategies that allow them to thrive as they are.

Sensory overload is a message. Let’s learn to listen to it.

💜 To find out more about sensory assessments and occupational therapy support at Onyx, visit our services page or email admin@onyxtherapy.uk