A groundbreaking study reveals that targeted cognitive training can boost academic performance as much as a full year of schooling, and the secret lies in working memory.
Hoa Ly remembers the exact moment everything fell into place.
He was sitting across from Professor Torkel Klingberg, listening to decades of research data. Numbers that showed something remarkable: the brain’s ability to focus and learn wasn’t fixed. It could be trained.
“I was blown away by the evidence,” Ly recalls. “Here was this methodology with overwhelming scientific support, but the tools were locked away in research labs.”
As a clinical psychologist and father of three, Ly knew firsthand what modern kids were up against. Attention spans have dropped by 70% over the past decade. Academic performance is slipping across developed nations. Children are drowning in content but lacking the mental foundation to absorb it.
That conversation sparked what would become Nuroe, an app that brings laboratory-grade brain training into family homes worldwide.
When Kids Can’t Focus
Parents see it everywhere. Kids who can’t sit still for homework. Children who start reading assignments but drift off halfway through. Students who seem smart but struggle to show it.
The problem isn’t laziness. It’s not a lack of motivation either. It’s something deeper. The brain’s ability to focus, hold information, and actually work with it.
Hoa Ly gets this. He’s a clinical psychologist, dad of three, and someone who’s built his career understanding how minds work. His parents came to Sweden as immigrants, and education opened doors for his family, fueling his desire to do the same for other kids.
“Over the last decade, average attention spans have dropped by more than 70%,” Ly says. “Kids aren’t lacking content. They’re lacking the mental foundation to absorb and apply it.”
The solution isn’t more tutoring or stricter rules about screen time. It’s training the brain itself.
The Brain’s Workspace
Ever walk into a room and forget why you went there? Or start reading the same paragraph three times because your mind keeps drifting?
That’s your working memory at capacity. It’s the brain’s mental workspace, where you hold and use information in real time. It powers focus, decision-making, and problem-solving.
And here’s the thing most people don’t know: you can train it.
Professor Torkel Klingberg has spent 25 years studying this. He’s at the Karolinska Institute and serves on the Nobel Assembly. His research shows working memory isn’t fixed like height or eye color.
It’s trainable. Like a muscle. “Working memory is one of the strongest predictors of academic success,” Klingberg explains. “Yet the tools to strengthen it have been stuck in research labs.”
That’s where Nuroe comes in. It takes laboratory-grade brain training and puts it on your phone.
The Study That Got Everyone’s Attention
Sometimes research produces results so clear they can’t be ignored.
Earlier this year, one of the most respected economics journals published findings that made waves. The study followed nearly 600 kids for years. Children who did working memory training at ages 6-7 were 50% more likely to get into top secondary schools three years later.
50%, that is not a small bump. That is life-changing. What type of training did they use? The same protocol is now used in Nuroe.
The study was led by Professor Ernst Fehr at the University of Zürich. It was edited by Nobel laureate James Heckman, who’s famous for his work on childhood development. This isn’t some startup making bold claims. This is serious science.
How It Actually Works
The training is surprisingly simple. Forty sessions of 15-20 minutes each. That’s about 12 hours total, usually done over 8-13 weeks.
Kids complete game-like exercises designed to strengthen working memory. Difficulty adapts automatically, keeping them engaged, challenged, and growing. It’s like having a personal trainer for your brain.
Ly uses it himself. “I practice Nuroe regularly,” he says. “I notice clear effects juggling everything as a CEO, homeowner, and father of three. It helps me keep up with an intense life.”
The effects go beyond grades. Parents report kids who can finally sit through homework. Children who approach challenges with more confidence. Students who can resist the pull of distracting apps.
Beyond the Classroom
The effects show up in unexpected ways. One teenager told the Nuroe team that the training helped him resist TikTok’s pull. “I can stop myself now,” he said. “I have better things to do with my focus.”
His story highlights something important. Many kids want to break free from addictive apps but feel stuck. Working memory training gives them that power back.
It’s not about banning screens or limiting technology. It’s about building the mental strength to make better choices.
The training focuses on one thing: working memory. While other programs try to train multiple skills at once, Nuroe recognizes that working memory is the foundation of everything else.
“This is ‘the one skill to rule them all,'” Ly explains. “Research shows it’s key to developing specific abilities like reading and math.”
The Bigger Picture
Klingberg and Ly see a future where cognitive training is as basic as teaching kids to read. Not just for struggling students, but for everyone. “We’re not just selling an app,” Ly says. “We’re offering mental training equipment for a movement toward evidence-based cognitive training.”
They want parents to try it too. Create shared experiences. Show kids that building mental strength matters at any age.
Why This Matters Now
We live in a world designed to fragment attention. Social media, notifications, endless streams of content. Kids are growing up in this environment without the tools to handle it.
Traditional education focuses on delivering more information. But what if the real solution is building stronger minds to process that information? That’s what the research shows. Over 120 peer-reviewed studies back up this approach. It’s been tested in universities worldwide. The results are consistent.
The teenage TikTok user represents something bigger. He’s part of a generation learning that focus isn’t just willpower. It’s a skill you can develop.
For parents drowning in educational promises and quick fixes, Nuroe offers something rare: a tool backed by decades of research, proven in independent studies, and designed to unlock potential in every child.
The science is clear. Working memory training works. The question is whether we’re ready to give our kids the cognitive tools they need for the world they’re inheriting.
