Do Brain Training Games Actually Work? A Look at the Evidence

Do brain training games actually work? They work at making you better at the games, but the evidence that they sharpen everyday thinking is thin. That distinction sounds small, yet it is the whole story, because improving at a puzzle you practice every day is exactly what you would expect, while improving your real world thinking is the claim that has repeatedly failed to hold up.

What do brain training games actually improve?

They improve the trained task, which is real but narrow. When you play the same style of puzzle daily, your score climbs, partly because your underlying speed or memory may sharpen a little and partly because you simply learn the format and pacing. The problem is that this improvement tends to stay local, and the clearest demonstration came in 2010, when Owen and colleagues trained more than 11,000 people for six weeks and reported in Nature that every trained task improved while none of that improvement transferred to untrained tasks, even ones that were closely related (Owen et al., 2010, Nature).

Key takeaway: Getting better at a brain game mostly means getting better at that brain game, and the improvement rarely spreads to anything else.

What does the broader research say?

The broader picture is skeptical rather than encouraging. A 2016 review in Psychological Science in the Public Interest examined the field carefully and found no strong evidence that brain training programs produce broad benefits for cognition, academic achievement, or job performance beyond the practiced tasks themselves (Simons et al., 2016). This is not a fringe position either, because the same review noted that scientists themselves had publicly split into opposing camps over exactly this question, which is a sign of how weak and contested the evidence for real-world benefit remains.

Key takeaway: When a whole field of researchers cannot agree that a product helps, that disagreement is itself a reason to be cautious about strong marketing claims.

Where does Brain Age and Lumosity fit in?

They fit in as the household names that made the category huge, and also as cautionary tales. Brain Age, a trademark of Nintendo, turned quick arithmetic and memory puzzles into a mainstream hit, and Lumosity built a large subscription business on similar games. The trouble is what was promised, because in 2016 the US Federal Trade Commission fined Lumos Labs two million dollars, finding that it had advertised its games as able to stave off cognitive decline and boost performance at work and school without the science to support those claims (FTC, 2016). The games were not the problem, but the enhancement claims attached to them were.

Key takeaway: The most popular brain games are fun and harmless, yet the promises stacked on top of them have already crossed into territory that regulators judged deceptive.

A more honest use of the same idea

The idea worth keeping is measurement, not enhancement. Instead of asking a game to make you sharper, you can use a consistent test to measure a specific ability and watch how it moves over time. Mentation takes this route, because its exercises are built on documented paradigms such as Simple Reaction Time and Digit Span, and it reports plain numbers and deltas against your own baseline rather than dressing scores up as proof that your brain is improving. It is a measurement instrument first, which is why it does not make the promises that got other products into trouble.

Not a medical device. For educational purposes only.