Answer extracted from the The Diary Of A CEO with Steven Bartlett podcast — listen to the full episode below.
How does struggle shape grit and cognitive resilience in the brain?
Grit develops through struggle—it cannot be built any other way. The brain matures by confronting challenges, adapting to adversity, and learning from mistakes. The brain's fundamental design is to adjust and evolve when faced with new situations; without that friction, cognitive resilience cannot develop.
The relationship between struggle and grit is not metaphorical—it is neurological. When you face difficulty, your brain is forced to adapt, and that adaptation is the mechanism by which resilience forms. As the neuroscientist explains in the episode, every mistake becomes an opportunity for the brain to rewire itself and prepare for future challenges.
Perfect comfort, paradoxically, weakens your brain's ability to handle adversity. Being with someone who never challenges you, never irritates you, and never requires you to adapt behaviorally—while emotionally pleasant—deprives your brain of the exact stimulus it needs to grow. The brain was built for that dynamic tension, not for frictionless harmony.
"You have to have a relationship with it or it's going to turn toxic. It's going to hurt you. But if you have a good relationship with it, it can make your life better."
Unknown Unknown — Neuroscientist and child psychiatrist, President of the Neural Information Processing Systems (NIPS) Foundation. He studies brain development, memory formation, and the neurological impacts of technology on young people. He actively tests new tools by uploading his research, books, and public television work to AI systems to better understand how these technologies affect human cognition.
This principle extends far beyond personal relationships. When you defer your thinking entirely to external systems—whether they are calculators, AI assistants, or social media algorithms—your brain loses the struggle that builds its capacity. The danger lies not in using these tools, but in using them passively, as the guest details in the conversation, without remaining an active participant in your own thinking.
Interestingly, electronic calculators—now ubiquitous—took 30 to 40 years before their cognitive trade-offs became measurable. They freed up mental energy for higher-order thinking, yet simultaneously changed how the brain processes numerical information. The lesson: tools themselves are neutral; what matters is whether you engage with them actively or surrender your cognitive role entirely.
Adversity as the Foundation of Neural Maturity
The brain's architecture is fundamentally adaptive. It does not mature in isolation or comfort—it matures through problem-solving under pressure. Every struggle, every mistake, every moment of friction teaches the brain to adjust its response for the next encounter. This is not suffering for suffering's sake; it is the mechanism of learning.
Without adversity, the neural pathways that handle stress, decision-making under uncertainty, and emotional regulation never develop. You end up neurologically unprepared for the inevitable difficulties of life. The discomfort of struggle is the signal that your brain is reorganizing itself to handle greater complexity. That's when real growth happens.
Discover more about how young people are using AI tools in ways that either strengthen or weaken their cognitive development by listening to the full episode, where the neuroscientist addresses the emerging research on childhood brain development in an AI-saturated world.
Key takeaways
- Grit cannot develop without struggle—the brain requires adversity to mature and build resilience.
- The brain's design is to adapt and adjust when facing new situations; this adaptation process is how resilience forms.
- Comfort without challenge actually weakens your brain's ability to handle future adversity.
- Active engagement with tools (rather than passive deferral of thinking) is what allows the brain to continue developing.
See also
How might sexualized AI characters like those released by Elon Musk's Grok impact vulnerable young people's brain development and social connections?
These AI characters pose serious risks to vulnerable young people, particularly lonely adolescents, by creating distraction and preventing meaningful human connection during critical developmental windows.
What concerns exist regarding AI use in early childhood brain development, particularly for children ages 0 to 8?
The most effective learning for young children requires one-on-one interaction with a skilled adult who knows the child. AI tools can interfere with this essential development stage.
What is the optimal way to use AI tools to enhance rather than diminish cognitive development and critical thinking?
You must maintain an active relationship with AI tools and continue thinking critically with them rather than deferring your thinking to them entirely. This balanced approach prevents AI from becoming harmful while allowing it to enhance your capabilities.