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How to Improve Cognitive Abilities: What Actually Works

Jana Horáčková·Neuroscientist·6 min read·February 20, 2026
How to Improve Cognitive Abilities: What Actually Works

Can Intelligence Really Be Improved?

Research from the last 20 years clearly confirms: yes, cognitive abilities can be trained. The brain is neuroplastic — it changes in response to experiences throughout life.

5 Scientifically Proven Methods

1. Physical Exercise

Aerobic exercise is one of the most effective methods for improving cognition. Studies from Harvard Medical School showed that 30 minutes of aerobic exercise 3 times a week increases hippocampal volume (the memory center) by 2%.

Practically: At least 150 minutes of moderate-intensity exercise per week.

2. Learning New Skills

Learning a new complex skill (musical instrument, foreign language, programming) creates new neural connections. The key is that the activity should be:
  • New (outside the comfort zone)
  • Complex (involves multiple brain areas)
  • Deliberate (focused repetition)
  • 3. Cognitive Games and Puzzles

    N-back training improves working memory and fluid intelligence. Chess, sudoku, and logic puzzles strengthen analytical thinking.

    IQboost offers 20+ brain training games specifically designed to develop different cognitive areas.

    4. Sleep and Recovery

    During sleep, the brain consolidates memory traces and removes toxic proteins. Optimum: 7–9 hours of quality sleep. Chronic sleep deprivation reduces IQ by 5–8 points.

    5. Meditation and Mindfulness

    A meta-analysis of 23 studies showed that regular meditation improves working memory by 15%, concentration by 25%, and cognitive flexibility by 18%.

    What DOESN'T Work (Myths)

  • Mozart effect — listening to Mozart doesn't increase IQ
  • Brain training apps (most) — improve only the specific game skill, not general intelligence
  • Supplements — Ginkgo biloba and omega-3 have minimal or no proven effect in healthy people
  • Conclusion

    The most effective strategy for developing cognitive abilities is a combination of: regular physical exercise + learning new skills + quality sleep. Brain training through platforms like IQboost works as a supplement, not a replacement.

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