You do word searches most days, or you hand them to someone you care for, and you want to know if they help. Word searches keep your brain busy with attention and visual scanning, and frequent puzzlers score well on thinking tests, but no study has shown that the puzzles improve memory or prevent decline.
Are word searches good for your brain? The short answer
Word searches keep your brain busy, and that is pleasant. Whether they make your brain healthier is a different question, and the honest answer is that nobody knows yet.
Here is what the research can say. Frequent word puzzlers tend to do better on thinking tests. Older adults who play games and puzzles tend to show a little less decline over the years. Neither finding proves that the puzzles did it. Healthier, sharper people may simply enjoy puzzles more.
Nothing here is medical advice. If you are worried about your memory or someone else's, see a doctor.
What a word search asks your brain to do
A word search gives you the word and hides it among letters. You hold the word in mind, scan the grid for its letters and check each lead. That uses attention, visual scanning, letter recognition and a little working memory, because you keep the word and your place in mind at the same time.
A crossword works differently. It gives you a clue, and you have to pull the word out of memory. You never have to recall a word or its meaning. Keep that in mind when you read studies of "word puzzles", because most of them mix the two together.
What studies of puzzle solvers found
The largest study of word puzzles looked at 19,078 healthy adults aged 50 to 93 in the online PROTECT study. People who did word puzzles more often scored better on all 14 thinking measures. Speed measures showed the biggest gaps. The paper in the International Journal of Geriatric Psychiatry ends by saying future work has to find out whether puzzles can change how thinking holds up with age.
A Scottish study followed 1,091 people born in 1936 from a test at age 11 to their late seventies. Those who played more non-digital games showed less decline from age 70 to 79. The Lothian Birth Cohort paper took childhood test scores and education into account. It still describes a link, not a proven cause.
A third study followed 10,318 Australians aged 70 and over for about 10 years. People who often played games, cards or chess, or did crosswords or puzzles, had a 9% lower risk of dementia. The authors of the JAMA Network Open study write that they cannot rule out reverse causality. Early changes in the brain can make people drop hobbies years before anyone notices memory problems.
| Study | Who took part | What it found | What it cannot tell you |
|---|---|---|---|
| PROTECT, 2019 | 19,078 adults aged 50 to 93 | Frequent word puzzlers scored higher on 14 thinking measures | Whether puzzles caused the higher scores |
| Lothian Birth Cohort, 2020 | 1,091 people born in 1936 | More game playing went with less decline from 70 to 79 | Whether a word search on its own does anything |
| ASPREE, 2023 | 10,318 adults aged 70 and over | Games, cards, crosswords or puzzles went with a 9% lower dementia risk | Whether early brain changes made people stop puzzling |
Word search benefits the evidence does not show
You may read that word searches build new brain cells, raise IQ or keep dementia away. None of the studies above shows any of that for word searches. The Alzheimer's Society page on brain training says brain training can make you better at specific tasks but does not improve thinking in general. It also says there is no strong evidence that brain training activities reduce your risk of dementia.
Harvard Health puts it the same way in The thinking on brain games. It says crosswords, chess and bridge have not been proven to protect against memory loss. Practice at word searches makes you faster at word searches. That skill may not carry over to remembering a name or a phone number.
A puzzle you enjoy is worth doing for the enjoyment alone.
Why challenge seems to matter more than the puzzle
One of the few trials that assigned activities at random is the Synapse Project. It assigned older adults aged 60 to 90 to activities for about three months, and 221 of them finished. Some spent around 16 hours a week learning a new, demanding skill, quilting or digital photography. Others did familiar tasks at home, such as crossword puzzles, documentaries and classical music. The Synapse Project paper found that memory improved in the learning groups compared with the familiar-task groups.
A small trial in people with mild memory problems points the same way. It compared online crossword training with online brain games for 78 weeks in 107 people. The NEJM Evidence trial found that the crossword group did slightly better on a memory and thinking scale. Both groups were trained, so the trial cannot say how either compares with doing nothing.
What this means for you is simple. When a puzzle feels automatic, it gives your brain little new to do. To keep the puzzle demanding, move up a level when it gets easy.
How to make word searches harder work for your brain
You can turn the same pastime into a bigger task by changing the grid and the rules. Bigger grids mean more letters to scan, and diagonal or backwards words break the habit of reading left to right.
On our large print word search page, the easy level has 8×8 grids with six words across and down. The expert level has 14×14 grids with 15 words in all eight directions. That is 196 letters to scan instead of 64, about three times as many. Our hard word search puzzles go further, up to 20×20 grids with 30 words.
Other ways to make it harder:
- Time yourself and try to beat your last time on the same level.
- Find the words in the order of the list, not the easy ones first.
- Make your own puzzle in the word search maker with words from a subject you are learning, such as Spanish words or bird names.
What does help your brain, according to health bodies
If your real goal is to look after your brain, the strongest advice is not about puzzles. The CDC page on reducing risk for dementia says nearly 45% of dementia cases may be prevented or delayed. It names five habits.
| Habit from the CDC | Where a word search fits |
|---|---|
| Stay physically active | Not at all, so take a walk before you sit down to puzzle |
| Prevent or manage diabetes | Not at all |
| Manage blood pressure | Not at all |
| Prevent or correct hearing loss | Not at all, though doing puzzles with someone else gives you a reason to talk |
| Limit alcohol and avoid smoking | Not at all |
Puzzles fit around those habits and do not replace them. Learning something new and staying in touch with people are worth adding too.
When a word search is the wrong tool
A word search is not a memory test. Missing a word, or taking longer than last week, says nothing about dementia on its own. When you or someone close to you has new trouble with memory, words or everyday tasks, see a doctor rather than watching puzzle times.
Puzzles are also the wrong choice if they make you tense, or if the letters are hard to see even in large print. Music, a walk with a friend or a class in something new may do more for you. For a carer choosing puzzles for someone with dementia, our article Does Word Search Prevent Dementia covers that question in more depth.
Enjoy word searches? Keep doing them and keep raising the level. You can start with an easy grid and work up to expert on the Large Print Word Search page.
FAQ
Is doing word search puzzles good for your brain?
A word search keeps your attention and visual scanning busy, and large studies find that people who do word puzzles often score better on thinking tests. Those studies cannot show that the puzzles caused the better scores. No trial has shown that word searches improve memory or prevent dementia.
Are word search puzzles good for your mind?
They can be a calm, absorbing break with a clear finish, and many people find that pleasant. As a mental workout they are mild once they feel easy. Moving up to bigger grids, diagonal and backwards words keeps them demanding.
Are word searches good for the elderly?
For many older adults a word search is an enjoyable activity on paper, and large print makes it easier to see. Pick a level the person can finish. It is a pastime, not a treatment, and any worry about memory belongs with a doctor.
What is the best game to increase memory?
No single game has been shown to raise memory for everyone. In the Synapse Project, older adults who spent three months learning a demanding new skill, quilting or digital photography, improved their memory more than people who did familiar tasks at home. Something new and hard seems to matter more than which game you pick.
What does it mean if you're good at word search puzzles?
It usually means you scan quickly and recognise letter patterns well, often from practice. In the PROTECT study, speed measures separated frequent and infrequent word puzzlers most clearly. Being good at word searches is not a medical test and says nothing on its own about dementia risk.
Conclusion
Word searches are a pleasant way to keep your attention and scanning busy, and frequent puzzlers do tend to score well on thinking tests. No study has shown that the puzzles cause that, or that they protect against dementia. Do them because you enjoy them, raise the challenge when they get easy, and put most of your brain-health effort into moving, blood pressure, hearing, blood sugar and less alcohol and smoking. If you notice changes in memory, see a doctor.
Sources
- Brooker et al., An online investigation of the relationship between the frequency of word puzzle use and cognitive function in a large sample of older adults, International Journal of Geriatric Psychiatry (2019) Last checked 2026-10-15.
- Altschul and Deary, Playing Analog Games Is Associated With Reduced Declines in Cognitive Function: A 68-Year Longitudinal Cohort Study, Journals of Gerontology Series B (2020) Last checked 2026-10-15.
- Wu et al., Lifestyle Enrichment in Later Life and Its Association With Dementia Risk, JAMA Network Open (2023) Last checked 2026-10-15.
- Park et al., The Impact of Sustained Engagement on Cognitive Function in Older Adults: The Synapse Project, Psychological Science (2014) Last checked 2026-10-15.
- Devanand et al., Computerized Games versus Crosswords Training in Mild Cognitive Impairment, NEJM Evidence (2022) Last checked 2026-10-15.
- Alzheimer's Society, Brain training and dementia (n.d.) Last checked 2026-10-15.
- Harvard Health Publishing, The thinking on brain games (2019) Last checked 2026-10-15.
- Centers for Disease Control and Prevention, Reducing Risk for Dementia (2024) Last checked 2026-10-15.