Article
Culture
Psychology
Weirdness
5 min read

Why smell jumps the queue when it comes to memories

Smells hardwire deep into the brain, writes Henna Cundill, as she explores why they jump-start such vivid memories.
An autumnal scene of a church yard and church framed by leafless trees.
'The smell of dust and damp stone will always cry “safety!”'
Jakub Pabis on Unsplash.

When I was a 22-year-old undergraduate my mother died quite suddenly. I can't remember the name of the undertakers we used, nor the chaplain who took her funeral. I can no longer visualise what any of their faces looked like. I know I visited the chaplain’s house to plan the funeral, but I can't remember exactly where that house was. What sticks is that the day of the funeral was a sultry summer's day, and both the chaplain and the undertakers smelt of perspiration. To this day there are moments where I catch that same whiff of man-sweat in some other location, and for a fleeting second, I am a bewildered 22-year-old once more. 

Here is another memory. I attended a tiny, rural Church of England primary school in the middle of England. At the end of each school year, all of us donned our little Wellington boots, which smelt faintly of slurry (since this was dairy-farming country) and sweaty feet. Then we lined up in a crocodile and trudged through the bluebell-wood (damp leaves) and skirted the edge of fields (silage, which stings the nose) covering the mile or so between our school building and the village church. 

We would enter the church grounds through the back field, hurrying through an eerily muffled graveyard with tombstones towering far above our heads and the grass disturbingly lumpy beneath our little feet. To the chidings of “Quickly!” and “Quietly!” we children scurried down a gravel path, away from this unsettling place of death, to reach the cool sanctuary of a little church, and the comforting smells (for me, at least) of damp stone and dusty hymnbooks. 

Others may not have the same associations, but for me the smell of dust and damp stone will always cry “safety!” and the reassurance that “there are no ghosts in here!” in contrast to that troubling graveyard. From death to life. Yet, at the same time, getting stuck with my nose close to some man’s whiffy armpit on the Tube will forever insinuate that I am just a child pretending to be a grown-up, out of my depth, overwhelmed with one thousand decisions to make (“What flowers do you want for her coffin?”) and no-one to advise. In the midst of life, death again.  

On reflection I will know that my emotions are being manipulated by my nose, in ways which are more or less than helpful depending on the circumstances.

Of course, I am not 22 years old and lost anymore, no matter what that man’s armpit tries to tell me. My rational mind knows better, but my rational mind doesn’t get a say – or doesn’t get the first say anyway. This is because smell is the only one of our senses that bypasses the thalamus (the brain’s ‘filtering gate’ that decides which part of the brain needs to respond to sensory input) and goes straight to the limbic system, where emotional memory is stored.  

Sometimes it is very obvious that this is taking place, such as in the examples given above. On reflection I will know that my emotions are being manipulated by my nose, in ways which are more or less than helpful depending on the circumstances. But it can happen in more subtle ways too. Supermarkets infamously pump out smells to influence our buying choices, and we’re trying to sell our house right now, so we’ve been brewing a whole lot more coffee than we ever usually would.   

Intriguingly, scientists don’t really know why the human sense of smell jumps the queue when it comes to cognitive processing. There are biological theories, such as that the smell of predator could wake up our ancestors while they were sleeping and/or could allow them to follow a scent trail quickly when fleeing danger or seeking food. There are social theories too, such as that we don’t have a lot of good words to describe smells, so the brain just doesn’t bother trying to analyse them. Whatever the truth of the matter, the reality is that (whether we like it or not) our noses are an emotional trip-hazard.  

When I walk through those great oak doors there is a moment, a glitch in the matrix, when the unmistakable smell of church hits my nose. Dust, damp… a little hint of mouse. 

I can’t help wondering what this tells me about my religious practice. Do I go to church because I have made a cognitive decision to worship God each Sunday? Or do I go to church because I am following my nose, getting away from a world full of armpits and responsibilities to a place where I am a seven-year-old girl, all gingham dress and wellies, feeling safe. If so, does it matter?    

Truth is, my mind can give me a dozen reasons not to go to church every single week. In fact, two dozen reasons. More. It has always been a busy week; I’m always behind on work. The house always needs a sort out and the car is never washed. But because certain congregation members are normally counting on me for certain things, and because I’m still pretending to be a grown up, I typically drag myself out the door, and off to church I go.  

And week on week, without fail, when I walk through those great oak doors there is a moment, a glitch in the matrix, when the unmistakable smell of church hits my nose. Dust, damp… a little hint of mouse. My body registers this before my mind; my shoulders drop a little of their tension. Even if it’s just for a fleeting moment, I start to feel that I know for sure what is absolutely real in my life and what is just pretend.  

Is this knowledge irrational – since it doesn’t come from the cognitive part of my mind? Or is there a God who knows that the cognitive part of my mind sometimes tells me all sorts of untrue and unhelpful things. Is there a God who is choosing to reach out to me in more subtle, more ancient ways?  

I can only wonder if I have been following my nose all this time, without even noticing. Drawn along by an ancient scent trail that leads me time and time again…this way…and that way…until I reach a place where there is safety, and bread. 

Review
Attention
Books
Culture
Digital
3 min read

Only the rich will experience reality

We’re extinguishing our real world

Simon is Bishop of Tonbridge in the Diocese of Rochester. He writes regularly round social, cultural and political issues.

A phone shows a picture of the real view behind it.
Josh Power on Unsplash.

It happens so routinely, no-one notices the weirdness anymore. Tourists in front of a majestic site like the Taj Mahal or the Niagara Falls place a camera between their eyes and the glory of the scene itself. Fans at a stadium concert hold cameras up to the singer rather than dance to the music. Witnesses to a disaster choose to film it rather than go to the assistance of the victims. 

Our desire to experience the world around us is being limited by technology, especially the smartphone and there is a growing body of literature to show its harmful effects, the latest of which is The Extinction of Experience (The Bodley Head, 2025) by Christine Rosen. She is a senior fellow at the American Enterprise Institute, a Washington DC based think tank and she adds to the work of Jonathan Haidt in The Anxious Generation who identifies what social media is doing to young people. Rosen, however, has the adult population in mind, as well. 

Every era has its subtle idolatries and perhaps ours is a slavish devotion to technology. It’s not that technology is wrong, but the expectation we conform to its development rather than the technology adapt to our humanity is slowly toxifying us. To paraphrase Jesus: the smartphone was made for humankind, and not humankind for the smartphone. 

Mediating our relationships by screen leads to instant communication, but also makes us impatient and emotionally careless. Human empathy is an embodied virtue. We learn to pick up emotional clues by watching the subtle facial movements and body language of others as they speak and listen. The growth of emojis is no substitute for this and has all the finesse of a face pulled by Thomas the Tank engine. And we more easily tune out of another person’s problems when they are expressed online rather than to our face.  US college students are around forty percent less empathetic than their counterparts only two or three decades ago, according to the University of Michigan Institute for Social Research.   

There are growing signs that screens reduce human empathy, which may be the most disturbing thing of all and perhaps offers a clue why life is becoming angrier. We spend most of our time lamenting how algorithms polarise us, without addressing an even more fundamental problem: we no longer talk about demanding issues face to face, where listening skills are required, but shout across cyberspace, where listening barely happens. 

But the momentum is for more of the virtual world. The software engineer, Marc Andreessen has coined the phrase ‘reality privilege.’  It belongs to those whose real-world existence is full of flourishing – relationships, wealth, housing, holidays, hobbies.  The solution for those who lack these goods, according to Andreessen and others, is a migration to an ‘online world that makes life and work and love wonderful for everyone, no matter what level of reality deprivation they find themselves in’. 

It is a case of Silicon Valley solutionism, where every problem must have a technological answer. The outcome of migration to an online world is that we no longer need to focus on solving knotty, unglamorous policy issues like poverty, poor housing and low-paid jobs. It also carries a curious echo of the theology which prioritises saving souls from a corrupt world rather than inheriting an embodied resurrection life in a new creation. 

In the two decades after 2003, in-person socialising between American adults dropped by thirty percent; among teenagers it fell by forty-five percent. According to Rosen ‘this changes our behaviour towards others, how we get along or don’t get along, how we resolve conflict, how we understand each other’.  The de-incarnation of human life continues apace, yet it is the physical world is where we flourish, where millennia of brain development has taken place and where God embodied himself in Christ.   

We may come to regret at length the rush to the virtual world, a bit like smoking in the twentieth century. But there is every chance we won’t, because technology is clever and so very cool. The meaning of the incarnation is up for grabs, only this time it’s human, not divine.  

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