Are We Becoming Sensory Couch Potatoes?

It is such a privilege to be able to use our senses

We spend a great deal of time thinking about whether we are moving our bodies enough, but there is another kind of inactivity that receives much less attention. We can be surrounded by stimulation all day and still use a surprisingly narrow range of our senses. A television can give us colour, movement and sound. A phone can give us photographs, voices, music, maps, conversations and entertainment without requiring us to move more than our eyes and a finger. We can spend hours receiving information while the rest of the sensory system has very little to do.

That raises an unusual question: are we becoming sensory couch potatoes?

The phrase makes me laugh, but the idea behind it deserves some thought. Our senses are not five separate switches that turn on in the morning and continue working at exactly the same level regardless of how we live. Sight, hearing, smell, taste, and touch are constantly interacting with attention, memory, and movement, and the brain has to interpret all of that incoming information. We also have internal sensory systems helping us know where our bodies are in space and whether we are upright, moving, or balanced. When we walk through the physical world, all of these systems work together in ways that are easy to overlook because most of it happens without conscious effort.

Consider what happens during an ordinary walk in the woods. Your eyes continually change focus between the path immediately in front of you and objects farther away. Your ears locate sounds from different directions. Your nose receives information from soil, trees, water, and vegetation. Your feet and joints respond to changes in the ground, while your balance system and sense of body position make constant adjustments to keep you upright. You are moving through an environment that does not remain perfectly level, perfectly lit or perfectly predictable, and your body has to respond to it.

Now compare that with watching a video of someone walking through the same forest. You may see magnificent scenery and hear birds, wind and water, but most of your body remains in exactly the same place. The visual and auditory experience may be rich, yet much of the sensory participation that would have occurred in the real forest has been removed.

That distinction connects directly with the larger conversation we are having this week about convenience and virtual life. Technology can give us extraordinary amounts of stimulation, but stimulation and sensory participation are not necessarily the same thing. We can be visually overloaded while our eyes spend most of the day focusing within a fairly limited range. We can have sound playing around us almost constantly while rarely stopping to locate one particular sound in space. We can see hundreds of images of food without smelling, touching, or preparing any of it.

In other words, it is possible to be highly stimulated and still be sensorially underused.

Movement and the Senses Were Never Really Separate

We tend to talk about the five senses as though each one operates from its own little department, but movement is woven through almost all of them. If something catches our attention, we turn our eyes toward it and often move our head as well. When we hear an unexpected sound, we orient our body toward where we believe it came from. When we smell something interesting, we move closer and deliberately breathe it in. Touch becomes considerably more informative when we move our hands across an object rather than leaving them still against it.

Even vision depends heavily on movement. Our eyes continually make tiny movements as we explore the environment, and our visual system works with the muscles of the eyes, head, and body to help us judge where things are. Looking at an object across the room requires a different visual demand from reading something close to the face, while moving through a room asks the eyes to coordinate with the entire body.

This does not mean doing eye exercises will allow someone who needs corrective lenses to throw away their glasses. Refractive errors such as nearsightedness, farsightedness, and astigmatism involve the way the eye focuses light, and ordinary eye exercises do not correct those structural differences. There are, however, particular problems involving how the eyes work together for which professionally prescribed exercises can be useful. That distinction matters because there is a world of difference between saying that movement and visual variety are valuable and claiming that every vision problem can be exercised away.

For the rest of us, there is still something worth noticing about the way modern life uses vision. Many of our most absorbing activities take place at roughly arm's length or closer. We read screens, answer messages, work on computers, and watch devices that keep our visual attention in a restricted area for long periods. Stepping outside changes that demand immediately because suddenly there is distance again. The eyes have somewhere farther away to look, movement to track, and a much larger field of information to explore.

Sometimes what a sensory system needs is not another gadget designed to stimulate it. It needs a more varied world to interact with.

Smell: The Sense We Often Forget Until It Changes

Smell may be one of the clearest examples of a sense we tend to take for granted. We notice a beautiful aroma or an unpleasant one, but much of the information coming through the nose remains in the background until our ability to smell changes. Anyone who has experienced a significant reduction in smell after an illness knows how dramatically food, surroundings, and even memories can change when that sense is diminished.

There is a legitimate practice called olfactory training in which people with certain types of smell loss repeatedly smell a selection of distinct aromas over a period of time. Research has found that this can be useful for some people.

I find the idea fascinating because it demonstrates something larger than the treatment itself: smelling can be an active practice rather than something we only wait to happen to us.

An aromatherapist works this way instinctively. We do not experience an essential oil only as “a nice smell.” We notice its first impression, its intensity, and how it changes as we continue smelling it. We compare one aroma with another and learn to identify characteristics that someone who has never paid much attention to scent may miss entirely. That is not because an aromatherapist was born with a completely different nose. A large part of it comes from paying attention repeatedly enough to build recognition.

That principle extends well beyond essential oils. A kitchen, a forest, a garden, and the air outside at different times of year all contain information that can be noticed when we actually use the sense instead of allowing every smell to remain background noise.

Hearing Is More Than Having Sound Around Us

Our lives are certainly not lacking noise. Music plays, televisions run, phones alert us, traffic moves, and people speak around us throughout the day. Yet hearing sound and deliberately listening are different experiences.

When we listen with attention, the brain begins separating information. We recognize direction, distance, and differences between sounds that initially appeared to blend together. Outdoors, what first registers as “birds” can eventually become several different calls coming from different parts of the property. In a conversation, attention to rhythm, volume, and changes in another person's voice can add information beyond the words they are saying.

For people with hearing loss, professional auditory rehabilitation can include perceptual training designed to improve the use of available auditory information. For someone without diagnosed hearing loss, the broader lesson is that listening is something we can still practise.

There is an enormous difference between filling every empty space with sound and occasionally becoming interested in the sound that is already there.

Touch Goes Far Beyond Our Fingertips

Touch may be the sense most closely connected with Movement Matters because the body receives physical information from every interaction with the environment. We usually think of touch as something we feel through the skin, but movement also depends on information coming from muscles and joints that helps the brain understand where the body is positioned. This internal awareness, commonly called proprioception, is part of what lets us reach for something without staring at our hand or know where a foot has landed while walking.

Balance depends on several systems working together, including vision, information from the inner ear and sensory information from the body. That is one reason movement across varied environments can ask more from us than travelling across the same perfectly level surface every day.

Research into sensorimotor and proprioceptive exercise has found improvements in balance in older adults, which reinforces a principle we often return to in Movement Matters: abilities respond to being used.

That does not mean everyone should start wobbling around on unstable surfaces. Safety always comes first, particularly for anyone with balance difficulties, reduced sensation in the feet or a history of falls. What it does mean is that the body benefits from opportunities to notice position, pressure and movement rather than always being supported in exactly the same way.

Using the hands is part of this as well. Working with soil, preparing food, handling fabric, kneading, repairing, grooming an animal, or making something all provide information that cannot be reproduced by tapping a screen. Texture, resistance, temperature, and weight give the brain something physical to interpret.

Our hands were designed to do considerably more than scroll.

Taste Does Not Work Alone

Taste is another sense we often assume begins when food touches the tongue, yet much of what we call flavour comes from several senses working together. Aroma contributes enormously to how food is experienced, while temperature and texture add information of their own. That is why food can seem remarkably dull when the nose is congested even though the taste receptors themselves are still working.

Modern food can also deliver very concentrated and predictable flavours. When something has been designed to provide an immediate combination of sweetness, saltiness, richness or crunch every time we open the package, the sensory experience requires very little exploration. Whole foods tend to be less predictable. One piece of fruit may be sweeter than the next, herbs vary, vegetables change with season, and a home-cooked meal may never taste exactly the same twice.

That variability keeps us involved.

Eating with attention allows us to notice those differences, but attention becomes harder when the meal is competing with a screen, a car journey or several other activities at once. We explored that more deeply in Nutrition this week, and it belongs here as well because taste is another example of a sense that gives us more information when we participate in the experience.

What Happens When We Put the Senses Back Together?

The five senses are useful categories for talking about the body, but life rarely presents them to us one at a time. The physical world asks them to cooperate.

Walking outside combines sight, sound, smell, touch, balance and movement. Preparing a meal engages the hands, nose, eyes and taste while asking the body to reach, carry and coordinate. Spending time face-to-face with another person gives us their voice, facial expression, posture, movement and physical presence together rather than reducing communication to typed words.

This is what the virtual world has difficulty reproducing completely.

It can create powerful images and convincing sound. Technology will undoubtedly become much better at reproducing other sensory experiences as well. Yet the physical world still asks something different from us because we have to move through it rather than observe it from outside.

That participation matters.

It keeps us responding to distance, texture, sound, balance, temperature, scent, and the unexpected changes that happen when an environment is not designed around our preferences. It gives our brain multiple streams of information that have to be combined into one understanding of where we are and what is happening around us.

Maybe we do not need to think of our senses as things that have to be “strengthened” in the same way we would strengthen a muscle. A better question may be whether we are giving them enough variety and enough opportunity to participate.

Because if most of our day asks our eyes to look at a screen, our ears to receive electronic sound, and our fingers to tap a smooth piece of glass, then a large portion of an extraordinarily sophisticated sensory system is spending a lot of time with very little to do.

The answer is not to give up the screen. It is to keep giving the rest of ourselves a world to experience.

Give Your Senses Something to Do

These activities are about sensory attention and variety — giving the brain and body opportunities to interact with the physical world.

Sight — Change the Distance

Spend a few minutes somewhere you can see both nearby and distant objects. Look at something close enough to notice its detail, then allow your attention to move to something much farther away. Instead of staring hard, explore the wider scene and notice what is happening toward the edges of your vision as well as directly in front of you.

The purpose is to give your visual attention more variety than it receives from staying at one screen distance for long periods.

Smell — Build an Aroma Memory

Choose three or four familiar, safe aromas that are clearly different from one another. They might come from herbs, citrus peel, coffee, flowers or essential oils used appropriately for smelling. Smell one at a time and take enough time to identify what you notice rather than judging only whether you like it.

Return to the same aromas on another day and see whether recognition becomes easier.

Hearing — Map the Sounds Around You

Sit outside or near an open window for several minutes without adding music or another source of entertainment. Instead of hearing everything as one background sound, begin separating it. Notice which sounds are close and which are farther away, whether they are coming from the left, right, behind or above you, and whether you can continue following one sound when another appears.

The goal is not to make the ears hear better. It is to practise listening.

Touch — Identify Before You Look

Place a few familiar objects with different textures and shapes into a bag or underneath a towel. Without looking, use your hands to identify one object and notice what information helped you recognize it. Was it the weight, texture, temperature, shape, or resistance?

You can take the same idea into ordinary life by paying more attention to what your hands and feet are telling you as you cook, garden, work or move through different safe surfaces.

Taste — Find the Differences

Choose part of a meal that contains several flavours or textures and give it your full attention for a few bites. Notice what arrives first, what changes as you chew, and how aroma, temperature and texture contribute to what you call taste.

You do not have to turn every meal into an exercise. The point is to occasionally remind the brain that eating contains considerably more information than whether something tastes “good” or “bad.”

Put Them Together — Take a Sensory Walk

Go outside for ten minutes without making distance or speed the goal. Let the movement provide the structure and allow your senses to do the rest. Look farther away than you normally do, locate sounds, notice the air, feel how the ground changes beneath you, and identify one smell that tells you something about where you are.

You may cover less ground than you would on an exercise walk, but you may notice considerably more.

And that is the point.

The physical world is still full of information. We only have to keep showing up to experience it.