Why Neuroscientists Never Open Brain Training Apps

I was in a meeting when I opened a brain training app I had downloaded the previous evening: one of the glossy products claiming to improve concentration and expand your memory in less time than it takes to drink a coffee. There were five mini-games, three streak counters and a wheel glowing like a fruit machine. I felt commendably responsible, as though I had flossed my prefrontal cortex. Then I shut the app and spent the rest of the morning searching for a word that refused to surface.

Later that day, I met a neuroscientist in a light-filled office close to King’s Cross. She gave the knowing smile reserved for magic tricks seen far too often. Brain training apps again. When I asked whether she used them, I expected a tactful response. Instead, she shook her head. Her reasons are where things become interesting.

The quiet shrug from the lab

Whenever I ask researchers for their views on brain training apps, their reaction is much the same: a mild shrug conveying, if only. They neither loathe the apps nor resent them. They simply do not use them. Neuroscientists’ habits are remarkably unremarkable: sleep, exercise, reading and a hobby that offers genuine resistance. The explanation lies in the distance between two terms that initially seem interchangeable, but feel very different in everyday life: near transfer and far transfer.

Near transfer means improving at the game directly in front of you. Far transfer means recalling a colleague’s name in the lift after a poor night’s sleep, handling an awkward discussion with a clear mind, or getting through a dense report without having to read every line twice. Apps frequently produce the first result. They seldom produce the second. One scientist drummed a finger on her mug and said, with the briskness of somebody tired of repeating it, that evidence shows users improve at in-app tasks rather than at the long, untidy business of living.

We all know the small rush of beating a personal best in a digital puzzle, as though a faint halo has appeared over the day. Researchers do not deny that satisfaction. They simply refuse to mistake it for an improved brain. I wanted to believe otherwise.

The four brain training apps everyone downloads

When we try to wrest attention back into shape, we usually turn to the same four: Lumosity, Elevate, Peak and NeuroNation. They rank highly in app charts, look polished on a phone and feed numbers back to us in ways that resemble progress. I asked several neuroscientists, both on and off the record, whether they used any of them. Every answer was no.

All had tested them. A few had even enjoyed them for a week or so. Eventually, though, the shrug returned. This is why.

Lumosity: the pattern gym

Lumosity’s mini-games are quick, colourful and satisfying for anyone who enjoys putting things in order. You sort shapes, manage changing rules and keep a bouncing ball of attention in play. It can resemble weight training for neurons. You will improve at the specific exercises. The scores rise, and the small charts climb.

However, when I asked a UCL memory researcher what carries over into ordinary life, she explained that recalling abstract shapes on a phone and remembering where you left the car at Tesco are related abilities that rarely turn up at the same family gathering. There is history here, too: a major brain-training company reached a settlement with US regulators several years ago after its advertising claims exceeded the evidence. That does not mean the apps offer nothing at all. It does mean that the move from “better at the app” to “better at life” is too large for most people.

Elevate: the polished schoolteacher

Elevate has the manner of a supportive tutor with excellent stationery. Its games practise language, figures and comprehension, giving the experience an almost comforting quality. Fans often say it makes them feel more alert when writing emails or giving presentations. Certainly, daily mental arithmetic will make you faster at mental arithmetic. No one disputes the value of practice.

Yet several meta-analyses suggest that wider benefits for general intelligence or broad attention are limited at best. The improvement stays close to the task. It is like mastering the precise journey from your kitchen to the front door in darkness: you will handle that route brilliantly, but once outdoors, you still need to learn the road.

Peak: the reaction-time arcade

Peak emphasises speed, using swooshes and dings that can make your fingers more reactive over time. It is intensely gamified, with streaks and badges that quickly become compelling. You get quicker partly because you learn the rhythm. Performance climbs rapidly before levelling off. That is the practice effect: your brain learns the actions and the novelty disappears.

A Cambridge cognitive psychologist told me she enjoys Peak for what it is: a pleasant alternative to doomscrolling during a train journey. She does not regard it as serious training. To protect her attention, she runs beside the river and leaves her phone behind. There is a reason endurance athletes are dull at dinner: they understand that repetition under real load changes a system, whereas tapping for points does not.

NeuroNation: the memory promise

NeuroNation presents itself as a tool for building memory. Its activities are simple to describe at a party, which helps: remember this, track that, concentrate here. Its website includes studies. Some report improvements, but these are mostly in the practised tasks or very similar ones. When researchers seek gains in daily functioning-keeping appointments, organising a day or following a conversation in a noisy pub-the evidence becomes less clear.

A gerontology researcher in Glasgow told me that older adults often report feeling better while using these apps, and that matters, but the benefits generally diminish once testing moves outside the app. That is not a failure. It reflects learning’s tendency to remain where it began unless it is deliberately taken out into the world.

A quiet pile of evidence you never see in the ads

Look closely and you will find a restrained consensus across journals and open letters. Years ago, a large group of cognitive scientists issued a statement saying there was little evidence that commercial brain training generated broad, general improvements. Further reviews of working-memory training and attention apps followed, and their message changed very little. Gains on trained tasks are common; far transfer is uncommon, slight or persistently inconsistent.

There are exceptions, along with groups for whom targeted training supports targeted outcomes. Stroke rehabilitation and clinical programmes occupy a very different territory from a five-minute app session in your kitchen. The headline we want to trust-become smarter by tapping for ten minutes daily-remains largely a story we tell ourselves on gloomy mornings.

Why they feel like they work

Games are relentlessly engineered to achieve one thing: keep you playing. They use variable rewards, streaks and cheerful sounds that hit like a fizzy drink. This matters because the brain learns more readily when something feels significant. If a session leaves you proud and slightly energised, you remember that feeling more strongly than the material itself. You go about your day thinking, “I’m on the up.”

But test your concentration in a meeting after fragmented sleep, or attempt a difficult article while your phone nudges your thigh every few minutes, and the glow of that app session evaporates like condensation from glass. In truth, hardly anyone keeps this up every day. We come and go, then create an appealing story about routines that do not really exist. Apps reward attendance. Life asks whether you can attend without a reward.

The thing neuroscientists keep repeating

Every researcher I interviewed returned to one uncomplicated point: the brain adapts when it has to. It responds well to meaningful challenge, continuing novelty and recovery that helps changes settle. A brief daily serving of context-free puzzles is not the worst possible idea. It is simply thin soup when you are hungry for something more substantial.

One researcher called this the specificity principle, then explained it more plainly: you improve at what you practise. If you want to concentrate better at work, practise concentrating at work. If you want a longer attention span, read longer material. If you want to remember names more effectively, practise learning names using methods you can take into a room full of noise, perfume and uneasy laughter. They make you better at the game, not at life.

What scientists actually do instead

I began asking, rather nosily, what they did to look after their own minds. At first their answers seemed dull; in a culture devoted to hacks and shortcuts, they soon seemed quietly radical. None produced an app. Several spoke of choosing to be deliberately boring, which is a form of rebellion in itself. The list is familiar and frustratingly unglamorous. It also works.

Move your body, move your mind

Aerobic exercise appears again and again in research, like a reliably helpful friend. Blood flow, neurotrophic factors and mood: the three together matter. Most scientists I spoke with run, walk briskly, cycle or swim. They do not agonise over an ideal programme. They simply work up a sweat a few times each week and find their patience lasts longer during demanding work.

One researcher told me a brisk 20-minute walk before a period of deep focus gives her ninety minutes of clear attention. Whether this comes from oxygen, rhythm or leaving her phone at home is irrelevant to her. What matters is that it works. Brains change with load, not with taps.

Learn a real-world skill

Several scientists study languages slowly in coffee-stained notebooks, because the combination of grammar, memory and conversation feels like real effort. Others play instruments badly in their sitting rooms, bringing timing, listening, co-ordination and embarrassment into play-excellent fertiliser for plasticity. These activities have context, social pressure and a cost to getting things wrong beyond losing a streak.

Hard-won real-world skills carry their benefits into other parts of life. You may find you can sit with a frustrating problem for one beat longer, or recover more quickly when something seems impossible. You do not need a badge when you have a song to play on a rainy Sunday.

Guard your sleep like a secret

Sleep is where new learning stops wobbling and begins to set. It makes nearly everything else more manageable. Several researchers use blackout curtains and traditional alarm clocks. Their bedrooms stay cool. They regard late-night scrolling as they would eating cake for breakfast: occasionally delightful, but seldom sensible.

One Oxford neuroscientist relies on a pre-sleep wind-down routine that would look ridiculous on Instagram: a paperback, a light snack, chamomile, no miracles. She describes it as her most boring superpower. Sleep is the original cognitive enhancer.

Give your attention some air

Attention functions more effectively when it has room to breathe. Those who research it take brief walks without podcasts, look out of windows and spend three minutes doing nothing before giving it a name. There is nothing mystical about this. It is rest. The default mode network consolidates, the hard edges ease, and the next stretch of focus is cleaner.

I borrowed one useful technique: write down the single task you will do next, close every tab unrelated to it and set an inexpensive kitchen timer. Its ticking becomes a metronome. When your thoughts drift, they have somewhere to return to. Not a score, but a line on paper.

See people, not screens

Conversation makes the brain follow faces, voices, meanings and emotions all at once. It is complicated, untidy and entirely unlike a mini-game. The researchers I spoke with all protect some social time that is not performative and, where possible, keep their phones out of reach. Screen light is the wrong sort of companion for a mind that needs to practise understanding people.

They also tend to work in concentrated bursts before having tea with a colleague. It sounds old-fashioned until you notice how much work becomes possible when you know a break-with a face and a story-is waiting beyond it.

The smell of coffee, the sound of proof

Back in my kitchen, after speaking with enough scientists to fill a minibus, I made myself a modest promise. If I use brain training apps, I will describe them honestly: games that resemble a gym session for grey matter. I still enjoy them now and then, much as I enjoy the shock of 30 seconds of cold water at the end of a shower. But I no longer expect them to get me through a difficult afternoon or an uncomfortable conversation.

So I ran an experiment. For four weeks, I used no brain-training apps. On most mornings I walked quickly, played an awkward scale on an old keyboard and read one chapter of a book before checking emails. Whenever I completed a task, I wrote down the next one. On some days I slipped. On others, I ran. The unexpected result was not productivity, but the sense of steadiness that rose like steam from the mug beside me.

Why neuroscientists never open those apps

They do not dislike brain training apps. They simply understand what genuinely affects a brain expected to deal with a day full of noise. The research findings sit there in calm black and white: games train the game. The world demands more. If you want a clearer mind, give it weight, novelty, rest and challenges that spread into everything else.

And if you still want to tap your way towards brilliance, go ahead. Just hear the kettle humming, feel the phone warming in your hand and consider the question researchers ask without voicing it. What will change when you close the app?