Being a dad has made my brain younger

A man with a beard sitting on a sofa with two young children, one resting on his head, in a room with bookshelves.

My twins turned 11 the other day. I’m thankful the endless nappy changing and interrupted nights of their infancy are in the distant past. But there are new stresses, such as becoming an on-call chauffeur – to parties, sleepovers and sports clubs. Then, as now, the end result is similar: I’m frazzled most of the time. Ask me to guess and I’d say that being a parent has probably accelerated my brain age. So you can imagine my surprise when I stumbled upon a new paper in the journal Social Cognitive and Affective Neuroscience by James K Rilling and colleagues that claims caregiving – including being a dad – is associated with having a brain that’s young for your age.

The study builds on past research that found mothers and fathers in their 50s had a younger ‘brain age’ compared with their childless peers – by about half a year. This was based on measures of their brain structure, such as white- and grey-matter volume, as judged against databases of hundreds of brains of various ages. The new study extended this pattern to grandmothers and people caring for someone with dementia, and the findings suggested the brain age benefit might be even greater later in life. Compared with controls, grandmothers and caregivers had brain ages that were between four and six years younger, on average (after adjusting for other factors such as income and BMI). Both the old research and the new suggest there’s a sweet spot – too many (grand)kids or too much stress and the brain benefits are reduced.

As to why caregiving is associated with lower brain age, the researchers propose various reasons, such as being more mentally and physically active, the emotional connection, and the sense of meaning and purpose that comes from being a caregiver. My brain feels tired, but it’s nice to know the responsibilities of parenthood might be keeping it youthful!

by Christian Jarrett

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I first wrote about the neural consequences of fatherhood 11 years ago for Wired in the article ‘How Becoming a Father Changes Your Brain’ (2014).

In the Psyche Guide ‘How to Get the Most Out of Caregiving’ (2024), Elissa Strauss shows how to see the challenges of caregiving in a positive light.


NOTE TO SELFFEAR AND PHOBIA

How scary is it really?

A silhouette pressing hands on a frosted glass door in an abandoned room with peeling paint on walls and door.

Many situations in life that are supposed to be fun also involve a high degree of uncertainty: dates with strangers, rollercoasters with unpredictable twists and turns, unrehearsed karaoke. For those of us who like to be able to see what’s coming, many of these potentially enjoyable opportunities may as well have warning signs hanging over them. Sometimes it’s tempting not to take the risk. But I recently came across a study that made me wonder if I should challenge myself more often.

The researchers, including members of the Recreational Fear Lab at the University of Aarhus in Denmark, surveyed visitors to Dystopia Haunted House – one of those immersive attractions where you wander past menacing costumed actors, not knowing what will pop out next. Before they went in, the participants completed some questionnaires, including one tapping their intolerance of uncertainty. (They rated how much they agreed with statements like ‘I can’t stand being taken by surprise’ and ‘Uncertainty keeps me from living a full life’.) As you might expect, visitors who were less tolerant of uncertainty had dimmer expectations about how the haunted house would hit them. They anticipated less positive emotion and more anxious and generally negative emotions than the uncertainty-tolerant did. And yet, afterwards, visitors across the board (including the uncertainty-averse ones) reported feeling more positive emotions and less unpleasant emotions in the haunted house than they predicted they would.

In other words: despite the frightening surprises they’d encountered, it wasn’t so bad after all. It seems that for me and other certainty-craving people, the real problem might not be the ghoul hiding around the corner or the possibility of singing off-key at the karaoke bar, but our pessimism about how it’ll make us feel.

by Matt Huston

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If uncertainty causes you discomfort, too, you might benefit from reading the Psyche Guide ‘How to Embrace Uncertainty’ (2023) by Arie Kruglanski.

To learn more about research on haunted attractions and the benefits of horror, check out the Aeon Essay ‘Fear Not’ (2021) by Mathias Clasen.


NOTE TO SELFFOOD AND DRINK

The dissonance of meeting what you eat

There were about seven birds of different colours that I used to see wobble around my neighbour’s urban chicken run. I frequently passed it on the sidewalk. Peering through the fence, I’d feel a bit of unease. I was a not-quite-vegetarian then: I’d given up some meat due to concerns about animal welfare, but still ate chicken. Yet here I was, charmed by these same feathered creatures.

What I felt was cognitive dissonance, a concept first described by the psychologist Leon Festinger in the 1950s. It’s the psychological discomfort someone experiences when what they know or believe is inconsistent with what they do. For instance, you might believe it’s wrong to lie but do it anyway, or know that a major corporation is harming people but still buy its stuff – and that might cause you some internal disharmony. Sometimes, people deal with that by rationalising their behaviour (eg, ‘everyone else does it’). Other times, they change.

A new paper by the researchers David Fechner and Sebastian Isbanner suggests that my increasing cognitive dissonance may have put me over the fence (so to speak) into vegetarianism. They compared several groups of people: those who ate meat and had no plans to change; those who were considering no longer eating meat; and those who had actually made the change. They found that cognitive dissonance (gauged by how uneasy, uncomfortable, etc one felt thinking about eating meat) was higher in the potential-vegetarian group than among the meat-eaters, and higher still among vegetarians.

Other factors differed too, such as how feasible a vegetarian diet seemed to them. But according to the researchers, the results suggest that cognitive dissonance helped to explain why some people who believed in vegetarianism’s benefits actually adopted it. When it comes to morally loaded behaviours, believing might not be enough. Our conflicts might have to stare us in the face.

by Matt Huston

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If you’re contemplating going meat-free yourself, the Psyche Guide ‘How to Go Vegetarian or Vegan’ (2022) by Reed Mangels explains how to do it in a planned and satisfying way.

The initial spark for my eventual dietary shift was the book Eating Animals (2009) by Jonathan Safran Foer.


Embrace the monotony

A painting on a wall with a man in a suit standing in profile beside a doorway in an art gallery.

For most of my 20s, I couldn’t brush my teeth, ride public transit, or take a walk without listening to a podcast or audiobook. Silence, I thought, was a waste of time.

But since reading All the Beauty in the World (2023), I’ve been reconsidering my relationship to dull, seemingly empty moments. In the book, Patrick Bringley recounts his decade among the watchful guards of New York’s Metropolitan Museum of Art. Standing in the Met’s echoic halls for hours on end, day after predictable day, he found that, over time, his relationship to the work slowly changed. Initial enchantment with the art gave way to boredom – and then, enlightenment. He surrendered to the ‘turtleish movement of a watchman’s time’, stopped thinking about how much of his shift was left, and let the hours drift.

I think about Bringley’s experience when I have to engage in any long, monotonous task. It might be waiting in line or on hold, vacuuming, folding laundry, or chopping vegetables for dinner. I resist the urge to fill the time with music or podcasts and strive instead for what Bringley calls a ‘princely detachment’ from time, finding the luxury and nuance in the moment.

Bringley noticed patterns in the different kinds of Met visitors. Hanging up my laundry, I notice patterns in how different articles of clothing tend to wrinkle in the wash. Bringley developed an appreciation for artworks that he initially ignored. I pay finer attention to the unique composition of facial features on the faces of people I stand in line with. I am learning, I think, to appreciate the little things.

Of course, it requires constant practice to find the peace and richness in these stretches of time. But your reward comes, Bringley says, when an hour no longer feels an hour long, and you ‘hardly remember how to be bored’.

by Hannah Seo

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For a thoughtful conversation on how to embrace silence, and the meaning that can be found in intimate moments of quiet, listen to the episode ‘How to Sink Into Silence’ from the podcast The Gray Area with Sean Illing.

The Psyche Guide ‘Solitude Can Be Profoundly Restorative. Here’s How to Savour It’ (2025), by the psychologist Thuy-vy Nguyen, offers expert guidance on treating alone time as an opportunity, rather than a boring interlude.


Motivation is good, but discipline is better

Photo of a boxing match with a standing boxer in the ring and an opponent kneeling behind, lit by overhead lights.

In July this year, the Ukrainian boxer Oleksandr Usyk, aged 38, became the undisputed heavyweight champion of the world – for the second time! Combined with his 2018 undisputed cruiserweight title, this collection of accolades across weight classes is unprecedented in boxing history. His latest success led some commentators to compare him with legends such as Mohammed Ali, and prompted one journalist to ask him how on earth he stays motivated given all that he has achieved.

‘I don’t have motivation,’ Usyk said, ‘I have discipline.’ He went on to explain that motivation is temporary – you have it one day, but not the next. In fact, when he wakes up for training, he never has motivation, only discipline. ‘Motivation is good,’ he said, ‘but discipline is better.’

Usyk was stating succinctly something for which psychologists have long been gathering evidence. Whether it’s training for a sport, pursuing excellence at work, or seeking a healthier lifestyle, desire takes you only so far. That’s why we need to use devices grounded in discipline to support us, so that we don’t think about it, we just do it. What is discipline? It’s ‘related to high conscientiousness’, the sports psychologist Noel Brick tells me, ‘including being organised in our daily activities, an ability to control impulses … or completing activities out of a sense of duty.’ Approaches based on habit formation or implementation intentions ensure that we persist, almost as if on autopilot, regardless of our unreliable motivation levels.

Usyk’s comments reminded me of our Psyche Idea on another important distinction – between goals and commitments. Motivation might help you set your goals. But to get there will take discipline-based commitments. As Justin Kompf explained, ‘a goal is something that you want to do. A commitment supports that goal and is something you have to do.’

by Christian Jarrett

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For more insights into how to achieve your goals, read the Psyche Idea ‘To Meet Your Goals, Forget Willpower and Fill Your Toolbox’ (2022) by Marina Milyavskaya.

For a counterpoint to the idea that discipline is everything, check out this 2012 article I wrote about the psychology of drive and determination for One Life magazine.

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