Sensory Library — Overwhelm
Why do certain smells feel so overwhelming?
Smell sensitivity explained, why it can hit harder than other senses, and practical ways to plan around it.
Smell Sensitivity Intervention for Kids with Sensory Processing Issues · Nancy "Sensory Smart Parent" Peske
Hosted on YouTube. This video is independent of Sensory Access Michigan; linking to it is not an endorsement of the channel’s other content.
Smell gets less attention than sound or touch in most sensory-processing conversations, but for a lot of people it’s just as strong a trigger — a cleaning product, a cafeteria, or someone’s perfume can be genuinely hard to be around, well past ordinary dislike.
Why smell can hit so hard
Unlike sound or light, smell can’t easily be turned down or looked away from — it’s carried in the air and keeps arriving as long as the source is nearby. The olfactory system is also unusually well-connected to the brain’s emotional centers, which is part of why a strong smell can produce a fast, visceral reaction rather than a gradual one.
What it can look like
Sensitivity to smell varies a lot in how it shows up: some people notice ordinary smells others don’t register at all, some are overwhelmed only by specific strong smells like cleaning products or perfume, and some seek certain smells out while avoiding others entirely. It’s common for smell sensitivity to sit alongside other sensory sensitivities — to sound, light, or texture — rather than appear on its own.
What tends to help
- Distance and airflow. Moving away from a source, or toward fresh air or an open window, is often the fastest relief available in the moment.
- A neutral scent to return to. Some people find carrying something with a mild, familiar, neutral smell — unscented lotion, a plain cloth — gives them something to focus on instead.
- Advance notice. Knowing ahead of time that a space will involve strong smells — a scented store, a shared kitchen — makes it easier to plan around rather than be caught off guard.
- Reducing scented products at home. Unscented or lightly scented cleaning and personal-care products remove a source of exposure that’s easy to control.
This is background, not a treatment plan
This page describes a real and common sensory pattern, not a course of treatment. If smell sensitivity is significantly affecting daily life — school, work, or eating a varied diet — it’s worth raising with an occupational therapist, who can look at it alongside whatever else is going on for that specific person.
Common questions
Is smell sensitivity usually the only sensitivity someone has?
Not typically. It is common for smell sensitivity to show up alongside sensitivity to sound, light, or texture, rather than appear entirely on its own.
Can someone be both sensitive to and drawn toward certain smells?
Yes. Avoiding certain overwhelming smells while seeking out a specific familiar or preferred smell is a common, non-contradictory pattern.