Keeping Sharp

Crossword fans and Sudoku lovers, rejoice — your favorite pastimes may be doing more than just passing time. These types of “mentally engaging leisure activities” have been shown to support cognitive health, especially as we age.

Studies have found that people who regularly challenge their brains with puzzles, strategy games, or learning new skills tend to have better memory, processing speed, and attention than those who don’t.¹ In one long-term study, older adults who engaged in mentally stimulating activities several times a week had a significantly lower risk of developing dementia.²

But here’s the key: while puzzles are great, the greatest benefit comes from variety and challenge. Solving the same type of puzzle every day may lead to diminishing returns. On the other hand, trying new games, reading, writing, or learning something unfamiliar keeps the brain working harder — which helps build what’s called cognitive reserve.³

In short, yes — crosswords and Sudoku are good for your brain. Just make sure you’re mixing it up and staying mentally curious. The brain, like a muscle, stays sharp with consistent and varied use.

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Sources:

1. Sattler, C., et al. (2012). Cognitive activity and incident cognitive impairment in elderly persons: A population-based study. Neuroepidemiology.
2. Verghese, J., et al. (2003). Leisure activities and the risk of dementia in the elderly. New England Journal of Medicine.
3. Stern, Y. (2012). Cognitive reserve in ageing and Alzheimer’s disease. Lancet Neurology.