10 Brain Training Exercises That Actually Improve Cognitive Performance
Get the short answer first, then use the benchmarks, examples, and BrainRivals practice links to turn the idea into a measurable result.
Quick Answer
This guide turns an abstract idea about brain training into something you can notice, measure, and improve. The fastest way to use it is to read the benchmark first, compare it with your own context, then run a related BrainRivals test under the same conditions for a cleaner before-and-after signal.
Key takeaways
- Start with the practical benchmark, not the trivia.
- Treat one score as a snapshot and repeated scores as the real signal.
- Use the Reaction Time as the next measurable step.
How to Use This Guide
Use the article in three passes: scan the quick answer, check the tables or examples that match your situation, then pick one action to test this week. That keeps the article useful even if you only have a few minutes, while still giving you enough detail to come back for deeper context.
Does Brain Training Actually Work?
The short answer: yes — when done right. A large body of research distinguishes between generic "brain games" marketed with inflated claims and targeted cognitive training that produces genuine, measurable improvements.
The key findings from the science:
- Task-specific training works reliably: practising a cognitive skill consistently improves performance on that skill and closely related tasks
- Transfer to broader cognition is real but selective: the most effective training produces transfer to related abilities, not all cognitive functions equally
- Lifestyle factors amplify training gains: sleep, exercise, and nutrition dramatically affect how well the brain responds to cognitive training
Here are 10 exercises — some digital, some behavioural — that the evidence supports.
1. Reaction Time Training
What it trains: Processing speed, neural efficiency, attentional readiness
Reaction time training is one of the most direct forms of cognitive speed work. Repeating a simple stimulus-response task — seeing a signal and responding as fast as possible — compresses the neural processing time between perception and action through a process called long-term potentiation: the repeated firing of the same neural pathway strengthens its connections.
Studies on athletes and older adults show consistent improvements of 20–60ms over 4–8 week training periods. More importantly, reaction time improvements transfer to related tasks requiring fast responses in real-world settings.
How to train: Use the BrainRivals Reaction Time Test daily for 10–15 attempts. Track your average — not just your best — over weeks.
2. Working Memory Training
What it trains: Short-term memory capacity, attention control, fluid intelligence
Working memory — the ability to hold and manipulate information over short periods — is one of the most central cognitive abilities, correlating strongly with reasoning, reading comprehension, and academic performance.
Working memory training using tasks like the N-back task (remembering a stimulus from N steps ago) and sequence memory exercises has been shown to improve working memory capacity and, in some studies, fluid intelligence. The effect is larger and more consistent for tasks closely related to the training.
How to train: Practise the Sequence Memory Test and Number Memory Test on BrainRivals daily. Increase difficulty progressively — each level adds meaningful cognitive load.
3. Dual N-Back Training
What it trains: Working memory, divided attention, fluid intelligence
The dual N-back task — tracking both a visual position and an auditory stimulus simultaneously, each N steps back — is one of the most-studied cognitive training paradigms. Jaeggi et al. (2008, PNAS) reported improvements in fluid intelligence after training, making it one of the few studies to show transfer beyond the trained task.
Subsequent research has been mixed — some studies replicate the fluid intelligence transfer, others don't. But working memory improvements from dual N-back training are consistently reported.
How to train: Free dual N-back apps (Brain Workshop, Cambridge Brain Sciences) provide structured training. 20 minutes per day, 5 days per week, for 4+ weeks is the protocol used in most research.
4. Aerobic Exercise
What it trains: Processing speed, executive function, memory, neuroplasticity
Physical exercise is arguably the most powerful brain training intervention available — and the most underrated. A single 20–30 minute bout of moderate aerobic exercise produces measurable improvements in:
- Reaction time (−10–25ms acutely)
- Working memory capacity
- Executive function (planning, switching, inhibition)
- Sustained attention
Long-term aerobic training produces structural brain changes: increased hippocampal volume (supporting memory), enhanced prefrontal cortex connectivity (supporting executive function), and improved cerebrovascular health (supporting overall processing speed).
Erickson et al. (2011, PNAS) found that older adults who walked for 1 year increased hippocampal volume by 2% — reversing approximately 1–2 years of age-related shrinkage.
How to train: 150 minutes of moderate aerobic exercise per week (brisk walking, jogging, cycling, swimming). A 20-minute session before cognitive training provides an acute boost to the session's quality.
5. Mindfulness Meditation
What it trains: Sustained attention, working memory, reaction time, emotional regulation
Mindfulness meditation — focusing sustained attention on a single object (typically the breath) and redirecting attention when it wanders — directly trains the attentional control systems that underpin most cognitive tasks.
Meta-analyses (Lao et al., 2016; Cahn & Polich, 2006) show that regular meditators have:
- Faster reaction times (−15–30ms vs. non-meditators)
- Better working memory performance
- Improved sustained attention on vigilance tasks
- Reduced mind-wandering during demanding cognitive work
The mechanism appears to be strengthening of the anterior cingulate cortex and prefrontal networks that control attentional allocation and cognitive inhibition.
How to train: 10–20 minutes of focused attention meditation daily. Apps like Headspace, Waking Up, or Insight Timer provide guided instruction. Improvements in cognitive measures begin appearing after 4–8 weeks of consistent practice.
6. Speed Reading Practice
What it trains: Visual processing speed, reading fluency, working memory
Speed reading training — learning to process text in larger chunks, reduce subvocalisation, and expand perceptual span — improves both reading speed and related visual processing abilities.
While extreme speed reading claims (10,000 WPM with full comprehension) are not credible, structured training from 200 WPM to 400+ WPM is achievable for most people, with genuine comprehension maintained. This improvement reflects increased efficiency in the visual-cognitive pipeline for text processing.
How to train: Dedicated speed reading apps (Spreeder, ReadSpeeder) or structured courses. Combine with regular reading of challenging material. Progress is gradual — expect 4–8 weeks for meaningful speed gains.
7. Learning a Musical Instrument
What it trains: Fine motor coordination, auditory processing, working memory, pattern recognition
Learning a musical instrument is one of the broadest cognitive training interventions available. It simultaneously engages:
- Fine motor control (finger movements)
- Auditory processing (pitch, rhythm, timing discrimination)
- Visual processing (reading notation)
- Working memory (holding a melody in mind while reading ahead)
- Pattern recognition (chord shapes, scales, harmonic progressions)
Research consistently shows that musicians have faster reaction times, better auditory processing, enhanced working memory, and stronger executive function than non-musicians — with the effect scaling with years of training.
How to train: Any instrument works. Piano provides the most direct cognitive benefits due to bimanual coordination demands. Even 20–30 minutes of daily practice produces measurable cognitive improvements within months.
8. Verbal Memory and Recognition Training
What it trains: Long-term recognition memory, vocabulary, reading comprehension
Recognition memory training — repeatedly practising the discrimination between seen and unseen items — strengthens the episodic memory system and improves the precision of lexical representations in long-term memory.
This is directly applicable to academic performance (recognising key terms and concepts), language learning (recognising words across encounters), and professional performance in knowledge-intensive fields.
How to train: The BrainRivals Verbal Memory Test provides direct practice. Combine with wide reading — the richest source of varied, contextualised vocabulary exposure.
9. Chess and Strategy Games
What it trains: Planning, pattern recognition, working memory, inhibitory control, spatial reasoning
Chess is one of the most thoroughly studied cognitive activities. Expert chess players show enhanced performance on tasks involving:
- Pattern recognition (recognising familiar configurations)
- Planning (calculating multi-move sequences)
- Working memory (holding board positions in mind)
- Inhibitory control (suppressing tempting but inferior moves)
Classroom chess programmes have shown improvements in mathematics, reading, and cognitive measures in children. For adults, regular chess play maintains and develops planning and pattern recognition abilities.
How to train: Chess.com or Lichess provide free online chess with puzzles (tactical pattern training) that provide focused, high-repetition cognitive work. 15–20 minutes of chess puzzles daily is more cognitively productive than casual full games.
10. Spatial Memory Training
What it trains: Visuospatial working memory, pattern recognition, spatial reasoning
Spatial memory training — practising the encoding and recall of visual patterns — strengthens the visuospatial sketchpad and related spatial reasoning abilities. This has practical transfer to navigation, design tasks, and spatial problem-solving.
How to train: The BrainRivals Visual Memory Test and Chimp Test provide structured progressive spatial memory training. The grid difficulty increases systematically, ensuring that cognitive demand grows with your ability.
Putting It Together: A Weekly Brain Training Schedule
The most effective approach combines several types of training across a week:
| Day | Primary Training | Duration |
|---|---|---|
| Monday | Aerobic exercise + reaction time test | 30 min + 10 min |
| Tuesday | Working memory (sequence + number memory) | 20 min |
| Wednesday | Mindfulness meditation | 15 min |
| Thursday | Aerobic exercise + aim trainer | 30 min + 10 min |
| Friday | Verbal + visual memory tests | 20 min |
| Saturday | Chess puzzles or learning instrument | 30 min |
| Sunday | Rest — prioritise sleep | — |
Consistency matters far more than intensity. Twenty minutes daily, six days per week, produces vastly better cognitive gains than a single two-hour session weekly.
Try It on BrainRivals
Reading about the concept is useful, but a repeatable score is more actionable. Run the Reaction Time, Sequence Memory and Number Memory tests, save your result, then repeat under similar conditions later. The trend matters more than a single best attempt.
Frequently Asked Questions
Which brain training exercise has the most scientific support?
Aerobic exercise has the broadest and most consistent evidence base — it improves virtually every cognitive domain simultaneously. Among purely cognitive training methods, working memory training (especially N-back variants) has the strongest evidence for real-world transfer. Reaction time training is the most directly measurable.
How long does it take to see results from brain training?
Most people notice measurable improvements within 2–4 weeks of consistent daily practice. Significant gains — moving up a tier on BrainRivals, noticing faster thinking in daily life — typically emerge over 4–8 weeks. Gains from lifestyle factors like exercise and sleep can appear within days.
Can brain training prevent cognitive decline?
Regular cognitive engagement is consistently associated with reduced risk of cognitive decline and dementia. However, no cognitive training programme has been proven to prevent Alzheimer's disease or other neurodegenerative conditions. The evidence supports "cognitive reserve" — maintaining more active, connected neural networks — as a protective factor, but it's not a guarantee.
Are commercial brain training apps worth using?
Some are better than others. Apps that provide progressive, adaptive difficulty across multiple cognitive domains (working memory, processing speed, attention) have more evidence behind them than simple puzzle games. BrainRivals provides free, scientifically grounded tests across multiple cognitive domains as a starting point.
Is brain training more effective for young or old people?
Both groups benefit, but differently. Young adults show faster acquisition of skills and larger short-term improvements. Older adults show benefits that are more meaningful relative to preventing age-related decline — even modest training-induced improvements help maintain functional independence. The mechanisms are slightly different: younger brains are optimising; older brains are maintaining and partially compensating.