Do Brain Games Really Work?

The science on "brain training" apps is mixed — many overpromise and underdeliver. However, certain types of mental challenges are consistently linked to improved cognitive function, especially when they involve learning something genuinely new rather than just repeating easy tasks. The key is challenge, variety, and consistency.

Here are seven brain games worth your time.

1. Chess

Chess is one of the most studied games in cognitive science. Regular play is associated with improved problem-solving, strategic thinking, and working memory. Even beginners benefit — the process of learning openings, thinking several moves ahead, and analyzing your mistakes is a powerful mental workout. Free platforms like Lichess and Chess.com make it easy to start.

2. Crossword Puzzles

Crosswords strengthen verbal memory and vocabulary retrieval. They require you to hold multiple clues in mind simultaneously, which exercises working memory. Daily crosswords — even easy ones — build the habit of mental engagement. The New York Times Mini Crossword is a great low-commitment starting point.

3. Sudoku

Sudoku isn't about maths — it's pure logical deduction. Solving puzzles trains your brain to hold constraints in mind and systematically eliminate possibilities. Studies suggest regular Sudoku play is linked to better concentration and reduced cognitive decline in older adults.

4. Dual N-Back

This is the most demanding game on the list, but also one of the most researched. Dual N-back tasks require you to remember both auditory and visual stimuli from N steps back, updating your memory with each new piece. It's one of the few training tasks shown to improve fluid intelligence — your ability to solve novel problems.

5. Word Association Games

Games like Codenames or simple word-chain exercises push you to make unexpected connections between concepts. This strengthens associative thinking and creative cognition — skills useful far beyond the game board.

6. Jigsaw Puzzles

Underrated and deeply satisfying. Jigsaws activate visuospatial reasoning, short-term memory, and pattern recognition all at once. Research suggests they may also have meditative benefits, reducing cortisol and improving focus.

7. Speed Reading Challenges

Timed reading exercises — where you push yourself to read faster while retaining comprehension — train attention, working memory, and processing speed simultaneously. Apps like Spreeder let you set your own pace and track improvement over time.

Tips for Getting the Most Out of Brain Games

  • Play consistently — 15–20 minutes daily beats an hour on weekends
  • Increase difficulty progressively — easy puzzles stop challenging your brain quickly
  • Mix it up — different games train different cognitive skills
  • Combine with physical exercise — aerobic exercise significantly boosts neuroplasticity

Brain health is a lifelong practice. The best game is whichever one you'll actually play regularly — so choose something you enjoy and make it part of your daily routine.