A while back I told you about medical school. Six years at the library, and a strategy that basically amounted to volume, volume, volume. I still think about how much time that cost me.
Here's the part I left out: even after I'd learned about focused sprints and real rest,
I kept trying to learn new things the exact same way I learned in school. Highlighting. Re-reading. Cramming the night before a client call the way I used to cram before an exam.
It took me embarrassingly long to notice that I'm not a student anymore, and the way
I was taught to learn was built for a very specific brain, at a very specific age, that I no longer have.
What actually changes about learning once you're past your twenties, and what to do instead!
Let's get into it.
Today at a Glance
You’re NOT a student anymore
The NeuroScience behind Learning after 25
How I coach Learning after 25
You’re NOT a student anymore
Here's a number you've probably heard:
the brain is "done" developing around 25.
It gets repeated so often at this point it's basically folklore.
It's not quite right, and the correction matters more than the original claim did.
The "25" figure comes from early brain-scanning research that only followed people up to age 20 and extrapolated the rest. Bigger, more recent research suggests your brain keeps meaningfully reorganizing well past 25, with the single largest shift in how its networks are wired actually showing up around 32.
So why does this matter for learning?
Because "your brain is basically fixed once you're an adult" turns out to be wrong twice: the endpoint isn't 25, and there isn't really a fixed endpoint at all.
What changes with age isn't your capacity to learn. It's what you're learning on top of. And that means student-style techniques stop being the right tool for the job!
Let me explain it to you in more detail:
The NeuroScience behind Learning after 25
Your brain's wiring keeps changing well past your twenties.
A large 2025 study mapping brain scans from infancy into old age found major reorganization points at roughly ages 9, 32, 66, and 83 - with the shift around 32 being the single largest change of the whole lifespan (Mousley et al., 2025, Nature Communications). Whatever "done developing" means, it apparently isn't 25!How you space your learning matters more than how much you cram.
A meta-analysis of over 800 comparisons found that spreading practice over time beats massing it into one session for long-term retention - regardless of age or subject (Cepeda et al., 2006, Psychological Bulletin). One long Sunday session feels productive in the moment. But a few shorter ones across the week are what actually stick!Methods that work for a novice can hurt an expert.
The "expertise reversal effect" shows up again and again: step-by-step guided instruction, built for people with no prior knowledge, gets less effective - and sometimes even counterproductive - once you already have a foundation (Kalyuga et al., 2003, Educational Psychologist). If you already know a topic, going back into "student mode" (rereading, noting the basics) may be working against you. Worth sitting with, if you're anything like I was!
Translation
Your brain never really stops rewiring. The biggest remodel happens around 32, not 25.
Don't cram. Short sessions spread across the week beat one long marathon.
If you already know the basics, skip "student mode" → beginner-style instruction can slow experts down.
And here is how this can look in practice:
How I Coach Learning after 25
#1: Space it, don't stack it.
One three-hour session on Sunday loses to three one-hour sessions spread through the week, for anything you actually want to remember a month from now. If it matters, it earns more than one sitting.
#2: Start from what you already know, not from zero.
Before learning anything new, spend two minutes writing down what you already believe about it. You'll skip the parts built for novices and go straight to what's genuinely new, which is usually most of the value anyway.
#3: Practice the thing instead of just reviewing it.
For adults with real prior knowledge, doing (solving the actual problem, drafting the actual document) beats re-reading almost every time. Save the guided tutorials for territory that's genuinely unfamiliar to you.
That's it for this Saturday.
The next newsletter edition will come out on Saturday, the 29th of August 2026.
We will continue with:
"EQ Basics: You Have Four Emotion Words. You Need Twenty."
Own it!
Yours,
Moritz
PS:
Can you rarely make time for physical activity or regeneration? Do youI feel emotionally unstable and have difficulties to stay calm under pressure? Is managing people emotionally and energetically draining for you?
If that sounds familiar, Mastering Emotions is for you. I began coaching in 2023. Since then, l've coached over 30 executives, entrepreneurs, and high potentials on building Emotional Intelligence and into becoming future leaders.
If you want to learn more about my coaching book an orientation call here:
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