Why it works this way
What brain training is, and the full evidence on whether it works, have their own pages: What is brain training? and Does brain training work?. This guide turns three findings from that research into a plan.
Practice is specific. A major review of the studies cited by brain-training companies found extensive evidence that training improves performance on the trained tasks, less evidence for closely related tasks, and little evidence for distantly related tasks or everyday cognitive performance [1]. Drawing on several meta-analyses, Sala and Gobet concluded that cognitive training has minimal effect on general cognitive skills, and that the differences between studies are explained by design quality and statistical artefacts [2]. So the safest assumption is that you get better at what you practise.
Some strategies help with the material you use them on. A review of ten common study techniques rated only two as high utility: practice testing and distributed practice, because they helped learners of different ages and abilities across many kinds of tests [3]. In a classic experiment, students who took recall tests on a prose passage remembered more of it a week later than students who restudied it, although restudying looked better after five minutes and made students more confident [4]. We compare the two in Active recall vs rereading.
When you practise matters. A synthesis of 317 experiments on verbal learning found that spreading study over time improved later recall, and that the gap between sessions giving the best retention grew with how long the material had to be remembered [5].
How to train your brain, step by step
1. Choose one goal
"Train my brain" is too vague to act on. Name what you want to change, in words you could check: "remember the anatomy terms for my exam", "stay on one report for 50 minutes", "play this piece without stopping". LaserMind's goal pages gather methods and tools for common goals, for example Study & remember and Focus at work.
2. Pick methods whose evidence matches that goal
Evidence is about a particular outcome. A method can be well supported for one thing and unsupported for another, so LaserMind grades each method for a stated outcome rather than giving it one overall verdict. How we review evidence explains the grades.
| If your goal is | Start with | LaserMind grade, and the outcome it covers |
|---|---|---|
| Remembering what you study | Active recall and spaced repetition | E1 (strong evidence): long-term retention of studied material |
| Focus at work | Deep work, one task at a time | E3 (limited evidence): real-world focused work time |
| A specific skill, such as an instrument or a sport | Deliberate practice | E2 (conditional evidence): the practised skill |
| A better score on a working-memory game | N-back | E2: n-back and similar working-memory tasks |
| Thinking skills and health over the years | Aerobic exercise | E2: general cognition, memory and executive function |
Read the last column before you start. N-back is graded for n-back and similar tasks, not for memory at work.
3. Practise the real skill
Because practice is specific, the most direct route to a goal is to practise the goal itself. To remember what you study, test yourself on that material. To focus at work, practise focused blocks on real work. To play a piece, play the piece. Exercises on the Train page are useful for practising a single process, such as updating or inhibition, and for tracking that one task; treat them as practice of those tasks, not as a substitute for the skill you care about.
For skills, a widely used approach is deliberate practice: work on one specific weakness, with feedback, and raise the difficulty once you get it right. The idea comes from a 1993 framework that explained expert performance as the result of years of effortful practice, and reported that differences even among elite performers were closely related to the amount of deliberate practice [6].
Later research put that in proportion. A meta-analysis of 88 studies (11,135 participants) across games, music, sports, education and professions found that deliberate practice explained 14% of the differences in performance overall, in figures the authors corrected in 2018 [7][8]. The share was larger in games (24%), music (23%) and sports (20%) than in education (5%) and professions (1%) [8]. The authors concluded that deliberate practice is important, but not as important as had been argued [7]. These are correlations between how much people had practised, usually estimated from memory, and how well they performed, so they show how much practice goes with skill, not how much a new plan will add [7].
4. Schedule practice and space it out
Decide when you will practise and keep the sessions short enough to repeat. For study material, plan several shorter sessions on different days rather than one long one; distributed practice was the other high-utility technique in the study-skills review [3], and the longer you need to remember something, the longer the best gap between sessions tends to be [5].
LaserMind's tools are built around this. Recall Cards brings each card back when your predicted chance of recalling it has fallen to about 90%, so the gaps grow as you keep remembering it; see The spacing effect. The programs are day-by-day plans: the 28-Day Brain Challenge takes 10–15 minutes a day, 8-Week Focus pairs a short attention practice with one Deep Work Timer block on a real task five days a week, and Study Smarter in 4 Weeks applies one study strategy a day to your own material. Each allows one program day per calendar day, and missed days never reset anything.
5. Track your own progress
Write down a starting point for the goal itself, then look at the trend over weeks. Expect early gains on any test you repeat: a meta-analysis of 50 studies (134,436 people) of cognitive ability tests found an average gain of 0.26, a small effect, when people simply took a test again, with larger gains when the identical test was reused [9]. A rising game score is therefore partly practice at that game.
On LaserMind, your results are compared with your own earlier sessions. A Check-in about every four weeks uses task versions that the programs and the Daily Circuit don't train, and the weekly check-in in the Reflection tool records outcomes closer to daily life, such as focused minutes and how much you still remember of what you learned. How to measure progress in brain training explains how to read a trend over noise.
6. Protect sleep, and keep moving
Training on top of too little sleep works against you. In a meta-analysis of 70 articles, up to 48 hours without sleep had its largest effect on lapses in simple attention tasks [10]. Another meta-analysis found that missing a night of sleep before learning was linked to worse memory for the new material, although publication bias and low statistical power make the exact size uncertain [11]. Sleep and memory covers this in detail.
Physical activity is worth doing for health in any case, and LaserMind grades aerobic exercise E2 (conditional evidence) for general cognition, memory and executive function. An umbrella review of 133 systematic reviews, covering all ages and including clinical groups, which found that exercise improved general cognition, memory and executive function on average, with small to moderate effects [12]. A stricter umbrella review, limited to randomised trials in healthy people, found that the benefit became much smaller once active control groups and baseline differences were accounted for, and negligible after correcting for publication bias [13]. That conflict is why the grade is E2 rather than E1. So exercise for your health first, and treat any cognitive benefit as a possible bonus; we go through the evidence in How does exercise affect brain health and cognition?
7. Judge product claims
Before you trust a promise, ask four questions:
- Which level does it claim? Better scores on the app's games, on similar tasks, or in daily life?
- Was this product tested, in whom and for how long? The 2016 review found that many intervention studies cited by brain-training companies had major shortcomings in design or analysis, and none met all of its best practices [1].
- What was the comparison? A control group that did nothing is weak. Even an active control group only rules out placebo effects if its members expect to improve as much as the trained group, and almost no psychological intervention studies check this [14].
- Does it promise general change? Claims of better intelligence or memory in general go well beyond what training studies have found [2].
Putting it together: two example weeks
These are practical examples, not research findings.
| Day | A student learning anatomy | A knowledge worker who wants to focus |
|---|---|---|
| Mon | Write 15 question cards from today's lecture; test yourself | One 25-minute block on one real task, notifications off |
| Tue | Review the cards that are due; add new ones | 25-minute block; brisk 20-minute walk |
| Wed | Review due cards; explain one topic aloud without notes | 50-minute block; note distractions as you go |
| Thu | Review due cards; 30 minutes of cycling | 50-minute block |
| Fri | Mixed review of the whole week | 50-minute block; weekly check-in |
| Sat or Sun | Rest, or a short review if cards are due | A longer walk or another activity you enjoy |
In both, the main practice is the real task, the sessions repeat across the week, and the check at the end of the week measures the goal, not a game score.
Common mistakes
- Training a proxy instead of the goal. Hours on a memory game improve the game; they are not a plan for an exam.
- Rereading instead of testing yourself. Rereading feels fluent, but testing gave better retention a week later [4].
- Cramming everything into one long session. Spread it out instead.
- Reading the first weeks of gains as transfer. Some of the early rise is just familiarity with the task [9].
- Cutting sleep to fit in more practice. Sleep loss hits attention hardest [10], which undermines the practice itself.
What the research says
Try it on LaserMind
▶ Recall Cards (spaced repetition)Turn this week's study material into question cards, and let the schedule bring each one back over the coming days.
Try it on LaserMind
▶ Deep Work TimerPractise the real skill: one block of focused work on a task that matters to you.
What research has not established
- The spacing synthesis covered verbal recall tasks [5], and the study-skills review rated techniques for students' learning [3]. Neither says much about complex skills learned over months.
- The deliberate-practice figures are correlations, mostly based on people's own estimates of how much they had practised; they do not show how much a new practice plan will add for you [7].
- The exercise evidence conflicts: one umbrella review that included clinical groups found small-to-moderate benefits [12], while a stricter one limited to healthy people found the benefit negligible after correcting for publication bias [13].
- LaserMind's exercises, tools and programs are based on standard research tasks and strategies, but they have not been tested in trials of their own. Tracking your own results has no control group, so it cannot separate practice effects from real change.
- The example weeks and the step order are practical advice, not tested plans.
Frequently asked questions
How long does it take to train your brain? On a practised task, scores usually rise over the first sessions, partly because you are learning the task. For a real skill, think in weeks and months, and judge it by the skill itself. No study can give a timeline for general change, because general change from training has not been shown [2].
Are brain games a good place to start? They are fine if you enjoy them or want to practise one specific task. Expect to get better at the games [1], and give most of your time to practising the goal itself.
Do I need to practise every day? We know of no study that sets a daily minimum. Regular, spaced sessions you can keep up matter more than long ones, and a missed day is not a setback.
What the research says
Last evidence check 2026-10-17Students who practised recalling a text remembered more of it a week later than students who re-read it, even though re-reading looked better after five minutes. Daily life [4]
A review of ten common study techniques rated practice testing as one of only two with high utility. Daily life [3]
Across hundreds of experiments, spreading study over time beat massing the same study into one session for later recall; the best gap grows with how long you need to remember. Daily life [5]
The same review of study techniques rated distributed practice as the other high-utility technique. Daily life [3]
References
- Simons, D. J., Boot, W. R., Charness, N., Gathercole, S. E., Chabris, C. F., Hambrick, D. Z., & Stine-Morrow, E. A. L. (2016). Do "brain-training" programs work? Psychological Science in the Public Interest, 17(3), 103–186. https://doi.org/10.1177/1529100616661983
- Sala, G., & Gobet, F. (2019). Cognitive training does not enhance general cognition. Trends in Cognitive Sciences, 23(1), 9–20. https://doi.org/10.1016/j.tics.2018.10.004
- Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58. https://doi.org/10.1177/1529100612453266
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249–255. https://doi.org/10.1111/j.1467-9280.2006.01693.x
- Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T., & Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354–380. https://doi.org/10.1037/0033-2909.132.3.354
- Ericsson, K. A., Krampe, R. T., & Tesch-Römer, C. (1993). The role of deliberate practice in the acquisition of expert performance. Psychological Review, 100(3), 363–406. https://doi.org/10.1037/0033-295X.100.3.363
- Macnamara, B. N., Hambrick, D. Z., & Oswald, F. L. (2014). Deliberate practice and performance in music, games, sports, education, and professions: A meta-analysis. Psychological Science, 25(8), 1608–1618. https://doi.org/10.1177/0956797614535810correction
- Macnamara, B. N., Hambrick, D. Z., & Oswald, F. L. (2018). Corrigendum: Deliberate practice and performance in music, games, sports, education, and professions: A meta-analysis. Psychological Science, 29(7), 1202–1204. https://doi.org/10.1177/0956797618769891
- Hausknecht, J. P., Halpert, J. A., Di Paolo, N. T., & Moriarty Gerrard, M. O. (2007). Retesting in selection: A meta-analysis of coaching and practice effects for tests of cognitive ability. Journal of Applied Psychology, 92(2), 373–385. https://doi.org/10.1037/0021-9010.92.2.373
- Lim, J., & Dinges, D. F. (2010). A meta-analysis of the impact of short-term sleep deprivation on cognitive variables. Psychological Bulletin, 136(3), 375–389. https://doi.org/10.1037/a0018883
- Newbury, C. R., Crowley, R., Rastle, K., & Tamminen, J. (2021). Sleep deprivation and memory: Meta-analytic reviews of studies on sleep deprivation before and after learning. Psychological Bulletin, 147(11), 1215–1240. https://doi.org/10.1037/bul0000348
- Singh, B., et al. (2025). Effectiveness of exercise for improving cognition, memory and executive function: A systematic umbrella review and meta-meta-analysis. British Journal of Sports Medicine. https://doi.org/10.1136/bjsports-2024-108589
- Ciria, L. F., Román-Caballero, R., Vadillo, M. A., Holgado, D., Luque-Casado, A., Perakakis, P., & Sanabria, D. (2023). An umbrella review of randomized control trials on the effects of physical exercise on cognition. Nature Human Behaviour, 7(6), 928–941. https://doi.org/10.1038/s41562-023-01554-4
- Boot, W. R., Simons, D. J., Stothart, C., & Stutts, C. (2013). The Pervasive Problem With Placebos in Psychology: Why Active Control Groups Are Not Sufficient to Rule Out Placebo Effects. Perspectives on Psychological Science, 8(4), 445–454. https://doi.org/10.1177/1745691613491271