Sensory Overload: Calming an Overstimulated System

Sensory overload happens when your nervous system takes in more sound, light, touch, or smell than it can process at once, and it responds like something is wrong. To calm down, reduce the loudest input first (step away, dim, mute, or cover it), then add 60 to 90 seconds of bilateral stimulation to settle your body before you re-engage.

Maybe it’s the fluorescent lights and echoing chatter of a crowded store. Maybe it’s a kid’s birthday party: three conversations at once, sticky hands, a smell you can’t place. Your chest tightens, your thoughts scatter, and some part of you just wants out, even though nothing is actually wrong.

That reaction has a name, and it responds to specific things you can do right now.

What’s happening in your body during sensory overload?

Your brain is always filtering incoming information, deciding what deserves attention and what can be safely ignored. Sensory overload is what happens when that filtering breaks down: sound, light, touch, and smell all compete for attention at once, and none of it gets sorted (International Journal of Mental Health Nursing, 2017). Your nervous system reads that flood as a threat and reacts like a scary moment just happened: heart rate climbs, breathing quickens, senses sharpen (Harvard Health Publishing, 2024). You’ve been pushed outside your window of tolerance, the zone where you can take in a lot and still feel okay.

Cleveland Clinic describes the result plainly: overwhelmed senses can trigger anxiety, sweating, dizziness, and a strong pull to escape (Cleveland Clinic). It can hit anyone whose nervous system is already stretched thin, after a bad night’s sleep, a stressful week, or one too many demands stacked together. It’s also especially common in autistic people: Autistica, a UK autism research charity, reports that around 9 in 10 autistic people process sensory information differently, which makes overload a frequent, real experience rather than an overreaction (Autistica).

How do you calm down from sensory overload right now?

Each step below targets the flood directly. Move through them in order.

Step 1: Cut the loudest input first

Pick whichever sense is driving the overload hardest, and reduce that one first. Step outside, put on noise-canceling headphones or sunglasses, or move a few steps away from the crowd. You don’t need to fix everything at once, just the loudest channel.

Step 2: If you can’t leave, shrink your world

Sometimes stepping out isn’t an option: a meeting, a family dinner, a flight. Close your eyes for a few seconds, cup your hands loosely over your ears, or focus on one neutral texture, like your sleeve or a cool glass of water. The goal is to give your senses one thing to track instead of everything at once.

Step 3: Add bilateral stimulation

This is EMDR’s core technique, and it gives your overloaded senses one steady, predictable channel to follow instead of many competing ones. Cross your arms and tap your upper arms left, right, left, right, a technique called the butterfly hug, for 60 to 90 seconds (EMDRIA, 2021). A 2025 study in BJPsych Open found this same rhythmic bilateral stimulation (BLS) lowered autonomic arousal, your body’s alert state, in both PTSD patients and healthy volunteers, regardless of whether it used eye movements or touch. If you’d rather be guided than pace yourself, EmEase, a self-guided EMDR app, runs the same technique with a moving on-screen target or alternating tones, in the web app.

Step 4: Give it a real minute before you re-engage

Don’t rush back into the noise the second you feel slightly better. Let your heart rate settle and take one more slow breath before you step back in. Going back too fast just restarts the flood.

Why does this hit some people harder than others?

Some nervous systems have less room before ordinary input tips into too much, often because they’re already running in a heightened, on-edge state from stress, poor sleep, or past overwhelm. If that sounds familiar, hypervigilance is worth a look: a related pattern where the body stays in scan mode long after the original stress has passed. Settling today’s sensory triggers is genuinely useful on its own, even while any bigger pattern underneath takes longer to work through.

When does sensory overload need more than a quick reset?

This protocol is built for the overload most people hit sometimes: a loud store, a packed party, a chaotic week. Some patterns call for more support:

• It’s happening most days, not just occasionally.
• It’s interfering with work, school, or relationships.
• It regularly ends in a shutdown or meltdown that doesn’t shorten with practice.

None of that means the steps above stop working. It means an occupational therapist or mental health professional can help with what’s feeding the pattern, not just today’s spike. For a broader toolkit, see emotional regulation in the moment. If it’s more a racing heart than blocked-out senses, try our fight-or-flight reset; if it’s more a stacked to-do list than your senses specifically, feeling overwhelmed right now may fit better.

Your senses got flooded fast. Given the right minute, they can come back down just as fast.