"I play to keep my mind sharp," says your mother, matching jewels after lunch. Your uncle says the same about his daily solitaire. Maybe you say it too. But do these games really protect the brain, or do they just fill the hours? The honest answer is somewhere in between.
Why people say they play
In AARP's survey of people over 50 who play games, the top reasons were to have fun (86%), relax (79%), stay mentally sharp (78%), be challenged (74%), reduce stress (71%) and pass the time (70%). More than three in four saw gaming as an important part of healthy ageing. Those are good reasons. The question is how many of them the games actually deliver.
The brain: some good news, with fine print
Mentally active hobbies are linked to lower dementia risk. A large Australian study followed 10,318 people aged 70 and over for about 10 years. Those who regularly did "active mental activities," such as games, cards, chess, crosswords and puzzles, had about a 9% lower risk of dementia. Activities like writing, using a computer or taking classes were linked to about 11% lower risk. The fine print: this kind of study shows a link, not proof. People whose minds are already in good shape may simply be the ones who keep doing puzzles.
Games designed for brain training can help, especially when memory is already slipping. A 2025 review of 28 randomized trials with 1,698 older adults with mild memory and thinking problems found that specially designed "serious games" improved overall thinking and everyday functioning, with moderate certainty. But they did not improve memory itself. These were games built for training, not commercial bubble games.
Specific training matters more than "any game." One of the longest studies ever done, the US ACTIVE trial, followed older adults for 20 years. People who did a specific speed-of-processing training and came back for booster sessions were about 25% less likely to be diagnosed with dementia. Memory and reasoning training did not have that effect.
Put together, the evidence suggests the brain benefits most from challenge and novelty. Getting better and better at the same bubble game mainly makes you better at that bubble game. Once a game becomes automatic, it's more relaxation than exercise for the mind, and that's fine, as long as you know which one you're doing.
Mood, loneliness and the rest of life
A 2025 Japanese study followed 2,504 people aged 65 and over. Regular gamers were no happier and no less happy a year later than non-gamers. Importantly, gaming also wasn't linked to sitting more or going out less. In other words, for most older adults, games are neither a cure nor a danger. They're a pastime.
What about loneliness? A 2025 review of the research found that the key ingredient is other people. Games that involve playing with or talking to others seem more likely to help than playing alone. That matters, because in the AARP survey 81% of older gamers usually played alone.
The honest pros and cons
On the plus side: a few minutes of a familiar game can calm a busy mind, fill a dull wait, give a small sense of achievement and, if it's challenging and new, give your thinking some exercise. Word games and puzzles you share with family or friends add a social bonus.
On the minus side: 12 hours a week, the average among older US gamers, is more than an hour and a half every day. That's time that could have gone to a walk, a phone call with a friend or grandchild, or sleep. Late-night play in bed keeps you awake. Small purchases add up. And when the game becomes the main way to avoid loneliness, boredom or worry, it covers the feeling rather than easing it.
Key numbers
- 8 in 10 gamers over 50 say they play to keep their mind sharp. AARP, 2023
- 9% lower dementia risk for people over 70 who regularly did puzzles, cards or games. It's a link, not proof. Wu et al., 2023
- 8 in 10 older gamers usually play alone, while the research says connection is what eases loneliness. AARP, 2023; Jung & Yu, 2025
The bottom line
Your morning puzzle is not a waste, and it's not medicine either. The healthiest mix for the brain is variety: something new to learn, a body that moves, and people to talk to. If a game fits into that mix, enjoy it. If it has started to replace the mix, that's the moment to notice.
Quick self-check
- Is the game still a challenge, or do you play it almost on autopilot?
- Has gaming taken time from walking, seeing people or other hobbies?
- Do you play in bed late at night and sleep less because of it?
- Do you mostly play alone, and would you enjoy it more with someone?
- Do you reach for the game mainly when you feel lonely, bored or worried?
This is not a diagnosis. It's a way to see whether the game is adding to your life or quietly replacing parts of it.
If you notice changes in your memory or thinking, don't rely on games to fix them. Talk to your doctor. Many causes are treatable, and early checks help.
References
- AARP Research (2023, Apr 18). Gamers 50-Plus Are a Growing Force in the Tech Market. aarp.org
- Wu, Z., Pandigama, D. H., Wrigglesworth, J., Owen, A., Woods, R. L., Chong, T. T., Orchard, S. G., Shah, R. C., Sheets, K. M., McNeil, J. J., Murray, A. M., & Ryan, J. (2023). Lifestyle enrichment in later life and its association with dementia risk. JAMA Network Open, 6(7), e2323690. doi:10.1001/jamanetworkopen.2023.23690
- Gao, Y., & Liu, N. (2025). Effects of digital technology-based serious games interventions for older adults with mild cognitive impairment: A meta-analysis of randomised controlled trials. Age and Ageing, 54(4), afaf080. doi:10.1093/ageing/afaf080
- Coe, N. B., Miller, K. E. M., Sun, C., Taggert, E., Gross, A. L., Jones, R. N., Felix, C., Albert, M. S., Rebok, G. W., Marsiske, M., Ball, K. K., & Willis, S. L. (2026). Impact of cognitive training on claims-based diagnosed dementia over 20 years: Evidence from the ACTIVE study. Alzheimer's & Dementia: Translational Research & Clinical Interventions, 12(1), e70197. doi:10.1002/trc2.70197
- Nakagomi, A., Ide, K., Kondo, K., & Shiba, K. (2025). Digital gaming and subsequent health and well-being among older adults: Longitudinal outcome-wide analysis. Journal of Medical Internet Research, 27, e69080. doi:10.2196/69080
- Jung, E. Y. K., & Yu, J. (2025). The role of digital gaming in addressing loneliness among older adults: A scoping review. Healthcare, 13(17), 2140. doi:10.3390/healthcare13172140
About these sources
These 6 sources were published between 2023 and 2026. Reliability: 5 high, 1 medium. High means a review of many studies, a large experiment or long-term study, or official data checked in the original. Medium means useful evidence with real limits, such as a small sample, a single point in time, or no peer review. How we choose and check sources.
Educational guidance, not diagnosis or medical care.