Why Do Everyday Spaces Feel Overwhelming?

If you have ever stood in the middle of a supermarket aisle and felt a sudden, urgent need to leave, you are not alone. For many people in New Zealand, the simple act of picking up groceries or sitting in a shared office can feel like a direct assault on the senses. The flickering fluorescent lights, the hum of the refrigeration units, the distant chatter of colleagues, and the sharp scent of the cleaning aisle all compete for your attention at once.

This experience is often described as sensory overload. While everyone feels overwhelmed occasionally, for neurodivergent individuals, this is often a daily reality. In Aotearoa, we are beginning to change how we talk about these experiences. We are moving away from seeing neurodivergence as a deficit and toward a neuro-diversity framework. This approach recognises that different ways of thinking and sensing the world are a natural part of human variation.

Understanding why these everyday spaces feel so intense is the first step toward finding ways to navigate them more comfortably.

How does the brain process sensory information?

To understand why some spaces feel like “too much,” it helps to think of the brain as a gatekeeper. In most people, the brain acts as a filter. It decides which pieces of information are important and which can be safely ignored. When you sit in a busy Auckland café, your brain might filter out the clinking of cups and the low hum of traffic so you can focus on the person sitting across from you.

For many neurodivergent individuals, including those with autism or ADHD, this filter works differently. Research indicates that over 90% of autistic individuals report atypical sensory processing across at least one domain. This often manifests as hyper-reactivity, where the brain is overly responsive to input.

Imagine that instead of a gatekeeper choosing what information to let in, the door is pinned wide open. Every sound, sight, and smell hits with the same level of intensity. Researchers have observed that some neurodivergent brains have what they call “noisy signals,” where the brain struggles to distinguish between important information and background noise.

When the brain cannot filter out the hum of a fridge or the feeling of a clothing tag, it has to work much harder just to stay present. This creates a massive cognitive load, like a computer with too many programs running at once. Eventually, the system slows down or crashes. In humans, this can lead to a total shutdown or a meltdown. It is not a matter of “toughing it out”: it is a physiological response to a world that is simply too loud for the brain to process.

Why do supermarkets overwhelm me?

The supermarket is perhaps the ultimate test of sensory processing. For many Kiwis, it is a place of extreme sensory demand. The floor-to-ceiling shelves are a visual maze of bright colours and competing fonts. The constant “ping” of scanners and the rumble of trolleys create a repetitive auditory trigger that is hard to ignore.

It is not just about the noise: it is the combination of factors. The cold air in the frozen section, the bright glare reflecting off polished floors, and the unpredictable movement of other shoppers can make it feel impossible to focus on a simple shopping list. Adults with autism often report that noise, in particular, can be physically painful rather than just annoying.

Fortunately, we are seeing positive changes in New Zealand retail. Woolworths New Zealand, in partnership with Autism New Zealand, introduced the “Quiet Hour” initiative. During this time, stores dim the lights, turn off the radio, and keep trolley collection and shelf stocking to a minimum. This small shift in the environment makes a massive difference for people who otherwise find the supermarket inaccessible. When the background noise is lowered, the brain can finally focus. It is a practical example of how changing the environment, rather than the person, can create a more inclusive space.

Managing sensory overload in the New Zealand workplace

While supermarkets are a temporary challenge, the workplace is where many people spend the majority of their time. The trend toward open-plan offices in New Zealand corporate culture has created significant barriers for those with sensory sensitivities.

In a shared office, you are at the mercy of everyone else’s sensory choices. You might be trying to write an important report while a colleague eats lunch nearby, another takes a loud phone call, and the air conditioning hums overhead. Research has shown that noise in open-plan offices is not just a distraction: it is a measurable source of stress.

For a neurodivergent employee, this constant “threat” of sensory input keeps the body in a state of high alert. This can lead to increased fatigue and even higher rates of sickness absence compared to those who work in private offices. When you are constantly using your energy just to stay calm in a loud room, you have less energy left for your actual work. This often leads to “masking,” where an individual works twice as hard to appear calm and productive while internally they are reaching their limit. By the time they get home, they are often completely exhausted, a phenomenon sometimes called “autistic burnout”.

Finding sensory-friendly activities in Auckland

It is encouraging to see our cultural institutions leading the way in neuro-inclusion. Auckland Museum, for example, offers “Sensory-Friendly Saturdays”. These sessions are designed for visitors who benefit from a more relaxed environment. The museum reduces sound levels in galleries, provides “chill-out” spaces, and offers sensory maps so visitors can plan their route based on light and noise levels.

These initiatives are important because they acknowledge that the “normal” way of experiencing a museum can be exclusionary. By providing a structured, predictable environment, they allow neurodivergent people to engage with history and culture without the fear of being overwhelmed. Predictability is key here. When you know what to expect from an environment, your brain does not have to work as hard to scan for potential sensory threats. This allows for a much more meaningful and enjoyable experience. Similar programs are popping up in cinemas and event spaces across the country, showing a growing awareness of sensory needs.

Practical steps to manage sensory load

While we work toward a more inclusive Aotearoa, there are practical steps you can take to manage sensory load in your daily life. Developing a personal toolkit can help you regain a sense of control over your environment.

1. Plan your environment: Whenever possible, choose “off-peak” times for errands. Use tools like Google Maps to check how busy a location is before you leave home. If you are heading to a shopping centre, check if they have dedicated quiet hours or designated quiet zones where you can take a break if needed.
2. Control your input: Noise-cancelling headphones or high-quality earplugs are essential for many. They do not just block noise: they give you control over your auditory environment. Listening to “brown noise” or a familiar playlist can act as a buffer against unpredictable external sounds.
3. The three-step grounding technique: If you feel yourself becoming overwhelmed in public, try to stop and identify one thing you can see, one you can hear, and one you can feel. This technique can help “reset” the brain’s focus and pull you out of a spiralling sensory response.
4. Scheduled sensory downtime: Build “sensory breaks” into your day. This means spending 10 to 15 minutes in a dark, quiet room to allow your nervous system to recover from the morning’s input. Think of it like charging a battery: if you wait until the battery is at 0%, it takes much longer to recover.
5. Professional support: If sensory overwhelm is significantly impacting your quality of life, it may be worth exploring professional options. In New Zealand, medicinal cannabis is a legal, doctor-guided option that some people choose to explore as part of a broader approach to managing the secondary symptoms of sensory processing differences, such as ongoing anxiety or difficulty switching off.

Is medicinal cannabis a safe option for neurodivergent adults?

For many people, the practical strategies above make a real difference. But if you have tried those approaches and are still finding daily life difficult to manage, you might be wondering whether there are other options worth exploring. One area that more New Zealanders are asking about is medicinal cannabis.

One of the most common concerns for people exploring medicinal cannabis is safety, both in terms of health and their professional life. If you have never tried a plant-based medicine before, the idea can feel like a big step.

It is important to understand that medicinal cannabis in New Zealand is a highly regulated, clinical process. It is not about “getting high.” It is about having a conversation with a doctor who can assess your situation and discuss whether it might be appropriate for you. Every person is different, and what works for one person may not be right for another. That is why the process starts with a thorough consultation rather than a prescription.

For those worried about their job, it is worth noting that medicinal cannabis is a legal prescription medicine in New Zealand. When prescribed by a doctor and used as directed, it is a legitimate part of your healthcare. At Cannabis Clinic, our doctors take the time to understand how you live and work, so that any care plan is built around your actual life.

How to start the clinical process in New Zealand

If you are curious about whether this path is right for you, the process is designed to be supportive and low-pressure. You do not need a referral from your GP to talk to us, though we always encourage open communication with your regular healthcare team.

When you book a consultation, you will speak with a doctor who can discuss whether medicinal cannabis might be helpful for the challenges you are experiencing. This is a time to talk through your history, your specific sensory triggers, and what you are hoping to explore. The goal is to understand your situation fully and talk through the options that might be relevant to you. For many people, simply having their sensory experiences acknowledged and understood by a medical professional is a meaningful part of the process. Understanding that your “overreaction” to a loud noise is actually a documented physiological response can be very empowering.

Medicinal cannabis is just one option that may come out of that conversation. It works best when combined with the environmental adjustments and coping strategies mentioned above. It is about creating a comprehensive plan that helps you feel more comfortable in your own skin and more capable in the world around you.

References

1. Crane, L., Goddard, L., & Pring, L. (2009). Sensory processing in adults with autism spectrum disorders. Autism, 13(3), 215-228. https://doi.org/10.1177/1362361309103794
2. Hughes, V. (2024). Autism brains have noisy signals, imaging study finds. The Transmitter. https://www.thetransmitter.org/spectrum/autism-brains-have-noisy-signals-imaging-study-finds/
3. Landon, J., Shepherd, D., & Lodhia, V. (2016). A qualitative study of noise sensitivity in adults with autism spectrum disorder. Research in Autism Spectrum Disorders, 32, 43-52. https://doi.org/10.1016/j.rasd.2016.08.005
4. Autism New Zealand (2019). Quiet Hour Initiative with Woolworths New Zealand. https://www.autismnz.org.nz/
5. Sander, E. J., et al. (2021). Open-plan office noise is stressful: multimodal stress detection in a simulated work environment. Journal of Management & Organization, 27(6), 1021-1037. https://doi.org/10.1017/jmo.2021.17
6. Pejtersen, J. H., et al. (2011). Sickness absence associated with shared and open-plan offices. Scandinavian Journal of Work Environment & Health, 37(5), 376-382. https://doi.org/10.5271/sjweh.3167