What is Nervous System Dysregulation and Why Does it Affect Neurodivergent Adults More?
- Laura Horn
- May 23
- 5 min read
Have you ever had a day where everything felt like too much?
The noise. The emails. The to-do list that won't stop growing. The feeling that your brain is running seventeen tabs at once and none of them will close.
And then someone asks you a perfectly reasonable question and you snap. Or shut down. Or cry in the car on the way home and wonder what on earth is wrong with you.
Nothing is wrong with you.
What you might be experiencing is nervous system dysregulation. And if you're a neurodivergent adult, there's a very good reason it hits you harder than most.
So what actually is the nervous system?
Your nervous system is your body's command centre. It processes everything, every sound, every sensation, every social interaction, every deadline, and decides whether you are safe or under threat.
When it decides you're safe, you can think clearly, connect with others, and function well. This is called a regulated state.
When it decides you're under threat, even when the threat is just a full inbox or a busy supermarket, it fires up your stress response. Your heart rate rises, your thinking narrows, your body floods with cortisol and adrenaline. This is called a dysregulated state.
In short bursts this is completely normal and actually helpful. The problem is when your nervous system gets stuck in that threat response, firing constantly, never fully switching off, keeping you in a state of high alert even when there is nothing to be afraid of.
That's nervous system dysregulation.
What does nervous system dysregulation feel like?
It looks different for everyone, but some of the most common signs include:
Feeling overwhelmed by things that seem small to other people
Snapping, crying, or shutting down without fully understanding why
Difficulty switching off, relaxing, or falling asleep
Feeling constantly on edge or waiting for something to go wrong
Emotional reactions that feel bigger than the situation warrants
Physical symptoms like a tight chest, shallow breathing, or a churning stomach
Swinging between feeling wired and completely exhausted
Struggling to think clearly or make decisions under pressure
Needing a lot of time alone to recover after social situations
Feeling like you're running on empty but unable to stop
Sound familiar?
If you're nodding along, you're not alone. And you're definitely not broken.
Why does it affect neurodivergent adults more?
Here's the part that nobody explains clearly enough.
Neurodivergent brains, whether that's ADHD, autism, dyslexia, or any combination are wired to process the world more intensely. More input comes in. More is noticed. More is felt.
That's not a flaw.
In many ways it's a superpower.
But it also means the nervous system is working significantly harder than average just to get through a normal day.
Add to that the lifelong experience of feeling different, misunderstood, or like you have to mask who you are in order to fit in, and you have a nervous system that has been running in high alert mode for years, sometimes decades.
For ADHD brains specifically:
The part of the brain responsible for regulating emotions and impulses, the prefrontal cortex, develops differently in ADHD. This means that emotional responses can be faster, more intense, and harder to slow down. It's not a character flaw. It's neuroscience.
Many people with ADHD also experience something called Rejection Sensitive Dysphoria, an extreme emotional response to perceived criticism or rejection that can feel completely overwhelming even when the trigger seems minor to others.
For autistic adults:
Sensory processing differences mean that everyday environments, bright lights, loud sounds, busy spaces, unpredictable social situations, can create a level of sensory overload that is genuinely exhausting for the nervous system to manage.
For many neurodivergent adults:
Years of masking, suppressing natural responses, camouflaging traits, working twice as hard to appear neurotypical, takes an enormous toll on the nervous system. Chronic masking is chronic stress. And chronic stress dysregulates the nervous system over time.
The exhausting cycle nobody talks about
Here's what makes nervous system dysregulation particularly cruel for neurodivergent adults.
When you're dysregulated, the very skills that would help you cope, organisation, emotional regulation, clear thinking, self awareness, become harder to access.
The ADHD brain that already finds executive function challenging finds it almost impossible when the nervous system is in a stress response.
So you fall behind. Which creates more stress. Which dysregulates the nervous system further. Which makes everything harder.
It's not a personal failing. It's a cycle. And cycles can be interrupted.
What actually helps?
The good news is that the nervous system is not fixed. It is responsive. Which means it can learn, with the right support and the right tools, to find its way back to safety more quickly and more reliably over time.
Some of the most effective tools I use for my nervous system regulation include:
Breathwork — Slow, deliberate breathing activates the parasympathetic nervous system, signalling to your body that it is safe. Even three slow breaths can begin to shift a stress response.
Movement — Physical movement helps discharge the stress hormones that build up during a dysregulated state. Walking, shaking, stretching, all of it helps. Walking backwards in particular has been shown to engage the brain differently and support nervous system reset.
Grounding practices — Techniques like the 5-4-3-2-1 method bring your attention back into the present moment and out of the threat response. Simple, evidence based, and genuinely effective.
Co-regulation — Being in the presence of a calm, safe person helps regulate your own nervous system. This is one of the reasons therapeutic relationships and coaching relationships are so powerful.
Reducing sensory load — Identifying and reducing your personal sensory triggers whether that's noise, light, crowds, or unpredictability gives your nervous system less to process and more capacity to stay regulated.
Understanding your own patterns — Knowing what tips you into dysregulation, what your early warning signs are, and what brings you back is one of the most powerful things you can do. Self awareness is not a luxury. It's a survival skill.
This is exactly why I wrote Scattered Pages ADHD: Reflections and Toolkit
When I was developing the ideas behind my book Scattered Pages, nervous system regulation was one of the first things I knew had to be in it.
Because everything else sleep, nutrition, self awareness, focus, relationships becomes harder when your nervous system is stuck in a threat response. Regulation isn't just one piece of the puzzle. It's the foundation the whole puzzle is built on.
Scattered Pages combines honest, human poetry with practical tools designed specifically for neurodivergent adults. Including a whole section on nervous system regulation, what it is, what it feels like, and what you can do about it.
If you've been running on stress for so long it feels normal, this book was written for you.
Comments