How to Actually Develop an Insane Memory
It's not a gift. It's a system. Here's the research.
Most people think great memory is something you’re born with.
The research disagrees.
Scientists have spent decades studying people with exceptional recall — and what separates them from everyone else isn’t intelligence. It isn’t genetics. It’s a set of specific, trainable habits that physically change how your brain stores and retrieves information.
Here’s exactly what they do.
1. They build a memory palace
In 2017, a team of researchers at Radboud University took 72 people with completely average memories and trained them for six weeks using a technique called the method of loci — better known as the memory palace.
Before training, participants recalled about 26 words from a list of 72. After six weeks? They recalled 62. Brain scans showed measurably stronger connections between the prefrontal cortex and the hippocampus — the memory center of your brain. The gains lasted four months after training ended.
Here’s how it works. You pick a place you know well — your childhood home, your apartment, the route you walk to work. You place the things you want to remember at specific locations along that route. When you need to recall them, you mentally walk through the space and pick them up.
Your brain is extraordinarily good at remembering places and spatial sequences. The memory palace hijacks that system and uses it to store anything you want.
Hobbies that make you use it naturally:
Chess — forces you to hold board positions and move sequences in your head
Poker — remembering cards played, betting patterns, tells
Learning a language — vocabulary storage is pure memory palace territory
Acting or theater — memorizing lines, blocking, cues all at once
Stand-up comedy — holding a set in your head without notes
2. They grow their hippocampus
Your hippocampus is the part of your brain that converts short-term experiences into long-term memories. It’s not fixed. It grows — or shrinks — based on what you do.
In 2011, Kirk Erickson and his team at the University of Pittsburgh published a study in PNAS showing that adults who did aerobic exercise three times a week for six months grew their hippocampal volume by 2%. Their spatial memory improved measurably alongside it. The control group — who didn’t exercise — showed hippocampal shrinkage over the same period.
Two percent sounds small. It isn’t. It reversed more than a year of age-related hippocampal loss. And it happened in six months.
Hobbies that grow your hippocampus:
Dancing — cardio plus coordination plus memorization, all in one. A 21-year study found dancing reduced dementia risk by 76% — more than any other activity studied.
Swimming — pure aerobic load, low impact, high brain benefit
Tennis or pickleball — adds cognitive demand (anticipation, strategy) on top of cardio
Hiking — sustained aerobic movement plus novel environments
Cycling — especially outdoors, where spatial navigation is active
3. They use all their senses
Here’s something most people don’t know about memory: the more senses involved when you learn something, the harder it sticks.
This is called multisensory encoding. When your brain receives information through multiple channels at once — sight, smell, touch, sound, taste — it builds more connections around that memory. More connections means it’s easier to retrieve later. Memories encoded through a single sense (reading, for example) are more fragile than memories built through multiple senses at once.
This is why you remember the smell of your grandmother’s kitchen decades later but forgot what you read last Tuesday.
Hobbies that force multisensory encoding:
Cooking a new cuisine — smell, taste, touch, visual precision, sequencing all active simultaneously
Pottery or ceramics — fine motor touch, visual attention, spatial reasoning
Playing an instrument — sound, touch, visual reading, motor memory
Painting or drawing from observation — visual processing, fine motor, spatial translation
Gardening — touch, smell, visual tracking of growth over time
4. They space out everything they want to remember
Cramming doesn’t work. The research has been proving this for over a century — and most people still don’t change how they learn.
In 2016, Sean Kang published a review in Policy Insights from Behavioral and Brain Sciences showing that spacing out your review of information across increasing intervals doubles retention efficiency compared to reviewing it all at once. This is called spaced repetition. Instead of reviewing something once heavily, you review it briefly — then again two days later, then a week later, then a month later.
Each time you retrieve a memory just before it fades, you strengthen it. The gap between reviews is the training. The forgetting is the point.
Hobbies that naturally build spaced repetition in:
Learning a language — vocabulary apps like Anki are built entirely on spaced repetition
Learning an instrument — weekly lessons with daily practice is spaced repetition by design
Martial arts — techniques are drilled across sessions, not in one go
Calligraphy — short, regular practice sessions outperform long irregular ones
Chess — pattern recognition develops across hundreds of games played over time
5. They protect their memory while they sleep
Everything you learned today gets consolidated into long-term memory tonight. If you shortchange your sleep, you shortchange your memory — no matter how well you studied.
In 2013, researchers at the University of Rochester published a study in Science showing that during sleep, your brain’s glymphatic system — a waste clearance network — becomes dramatically more active. It flushes out metabolic waste, including amyloid-beta, the protein that builds up into the plaques linked to Alzheimer’s. This clearance happens at significantly higher rates during sleep than during waking hours.
Miss sleep, and the waste stays. The memories don’t consolidate. What you learned fades faster.
Eight hours isn’t a luxury. It’s memory infrastructure.
Hobbies that improve your sleep quality:
Reading fiction before bed — lowers cortisol and transitions the brain out of problem-solving mode
Yoga or stretching — activates the parasympathetic nervous system, which signals your body it’s safe to rest
Swimming — physical fatigue plus temperature regulation post-swim improves sleep onset
Walking — especially in natural light during the day, which anchors your circadian rhythm
Journaling — offloading the day’s thoughts before bed reduces the rumination that keeps you awake
6. They test themselves instead of re-reading
Re-reading your notes feels productive. The research says it isn’t.
In 2006, Henry Roediger and Jeffrey Karpicke published a study showing that students who tested themselves on material retained 50% more of it one week later compared to students who re-read the same material the same number of times. The act of retrieval — forcing your brain to pull information out — strengthens the memory far more than passively reviewing it does.
Every time you test yourself, you’re not just measuring what you know. You’re building it.
Hobbies that force active recall:
Teaching someone a skill — you can’t fake what you don’t actually know
Book clubs — being asked what you thought forces you to retrieve what you read
Debating — you have to pull arguments from memory under pressure
Trivia or quiz nights — pure retrieval practice, disguised as fun
Journaling what you learned — writing from memory, not from notes, is active recall
You don’t have a bad memory. You have an untrained one.
Pick one thing from this list. Do it for six weeks.
References
Dresler, M. et al. (2017). Mnemonic training reshapes brain networks to support superior memory. Neuron, 93(5), 1227–1235.
Erickson, K.I. et al. (2011). Exercise training increases size of hippocampus and improves memory. PNAS, 108(7), 3017–3022.
Xie, L. et al. (2013). Sleep drives metabolite clearance from the adult brain. Science, 342(6156), 373–377.
Kang, S.H.K. (2016). Spaced repetition promotes efficient and effective learning. Policy Insights from Behavioral and Brain Sciences, 3(1), 12–19.
Roediger, H.L. & Karpicke, J.D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249–255.
Verghese, J. et al. (2003). Leisure activities and the risk of dementia in the elderly. New England Journal of Medicine, 348, 2508–2516.