Puzzling and Brain Health Update: Crosswords and Jigsaw Puzzles

brain health

[Loads of images come up when you google “brain health” or “brain fitness,”
but I liked this one much more than all of the ones with brains lifting barbells.]

“Brain health.” “Brain fitness.” “Brain-training.” Ever since I started writing for PuzzleNation Blog, I’ve been chronicling the debate over whether solving puzzles makes a verifiable, detectable impact on brain function, development, and overall health.

There are plenty of puzzle magazines, apps, websites, and services that claim to help with brain fitness. Some make vague assertions related to memory, mental flexibility, and other cognitive functions. Others are insanely specific, promising to reverse the aging process or to help prevent the onset of dementia and other cognitive difficulties later in life.

(Examples of the latter style of advertisement are rarer these days after Lumosity’s two-million-dollar payout for falsely advertising that their puzzle games could “reduce or delay cognitive impairment associated with age and other serious health conditions,” as well as “stave off memory loss, dementia, and even Alzheimer’s disease.”)

cogs-in-the-shape-of-a-human-brain-ryger

[This puzzle by Ryger can be found here!]

Whether we’re talking short-term or long-term benefits to brain health from puzzling, you’ll find dozens of articles online arguing both sides. Unfortunately, so much of the data out there is inconclusive, or is hindered by test groups too small to be applicable to the general population.

However, the positive, verifiable data we can find is encouraging.

Tetris has been used by researchers to help people suffering from traumatic flashbacks, a type of post-traumatic stress. The University of Exeter conducted a study involving more than 19,000 participants that concluded that adults age 50 and older who regularly solve puzzles like crosswords and Sudoku have better brain function than those who do not.

(While 19,000 is still relatively small when compared to millions upon millions of adults over 50, it’s still one of the largest test groups yet assembled for brain health studies related to puzzles.)

dory

And while people are always discussing short-term memory or long-term memory and how they relate to puzzle solving, it turns out there’s a middle ground between the two that crosswords may have a positive effect on. An article from Scientific American last year discussed how crossword solving engages the episodic buffer, one of the mechanisms related to our working memory, our ability to temporarily hold information while performing cognitive tasks.

Most cognitive activities engage the working memory through either verbal components or visuospatial components. (Visuospatial means how we perceive the relationships between different objects in multiple dimensions). But as it turns out, while playing Scrabble or solving crosswords, both visuospatial and verbal components are utilized by the short-term memory.

Of course, this is preliminary work, and there’s so much more to learn about short-term and long-term memory, but apparently, wordplay like Scrabble and crosswords could have a unique effect on how our working memory functions. That’s pretty cool!

But they’re not the only puzzles that we’ve discovered some fascinating new details about. Jigsaw puzzles can have a positive effect on the brain during the solving process.

BrainGames-scaled

Now, like crosswords and Sudoku puzzles, jigsaw puzzles have been the subject of several articles claiming they can help with brain health (or even decrease the presence of Beta-amyloid protein in the brain, a major component of the plaque that indicates Alzheimer’s disease). But I cannot verify those facts in scientific journals to my satisfaction, so I’m tabling that part of the argument.

What I do want to talk about it is how jigsaw puzzle solving can induce a mental state similar to dreaming, one that helps with stress, relaxation, and mood.

The company Sanesco Health is heralded as an industry leader in neurotransmitter testing, and according to an article on their site, placing those tricky little pieces in the right places can do you a world of good:

The connections made while working on jigsaw puzzles aren’t limited to our brain cells. Exercising both sides of the brain simultaneously also allows the brain to move from a Beta state, the wakeful mind, into an “Alpha” state, the same mental state experienced while dreaming. The Alpha state is where we tap into our subconscious mind.

Jigsaw puzzles naturally induce this state of creative, focused meditation, where connections can be made on deeper levels. And that release of dopamine with every puzzle piece you successfully place is an added bonus! Dopamine causes improved motor skills, an increase in concentration, optimism, confidence, and an enhanced recollection.

[Imagine how restful she felt after this!]

Considering that jigsaw puzzle sales spiked during the pandemic — with some outlets reporting sales increases of up to 500% — it sounds like people were either consciously or subconsciously making the perfect choice to cope with the stresses of lockdown.

As always, we’ll keep our eye out for any additional data on these findings.

But in the meantime, happy puzzling! It might be good for you!


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Well, summer’s over, but we still have deals galore for you to check out. You can find them on the Home Screen for Daily POP Crosswords and Daily POP Word Search! Check them out!

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Puzzles and Brain Health: Finally Some Definitive Data?

For years now, brain health and puzzle-solving have been intertwined topics.

There have been many, MANY published studies touting all sorts of effects, both positive and negative, of solving puzzles. Alongside those studies, there have been numerous products of a puzzly nature that claim to do everything from improving memory to staving off Alzheimer’s, dementia, and other debilitating conditions.

I’ve been reading articles on the subject for more than six years now, and the results, for the most part, have been inconclusive. This is often due to small sample sizes for the experimental data, or evidence that leads to likelihoods rather than verifiable, repeatable, reliable data.

Across all of these articles, there are essentially three suppositions:

  • A. Solving puzzles helps maintain or improve brain function
  • B. Specific “brain-training” exercises, programs, or products help maintain or improve brain function more so than traditional/unfocused puzzle solving
  • C. Solving puzzles (whether traditional or “brain-training”) helps stave off conditions like dementia, Alzheimer’s, and memory loss later in life

When it comes to Supposition B, I’ve yet to see anything that proves a “brain-training” or “brain-boosting” puzzle regimen actually helps in a meaningful way. In fact, at one point, one of these “brain-training” companies had to pay a two-million-dollar fine for making promises that their program couldn’t verifiably deliver on.

[Image courtesy of SharpBrains.com.]

But let’s leave that nonsense aside for a moment and focus on Supposition A, the idea that solving puzzles is good for the brain.

For the first time, we have a study performed by a reputable organization with a sample size large enough that it may finally allow us to draw some decent conclusions. Two articles published this month in the International Journal of Geriatric Psychiatry have concluded that adults age 50 and older who regularly solve puzzles like crosswords and Sudoku have better brain function than those who do not.

The study, conducted by researchers from the University of Exeter, involved a test group of more than 19,000 participants.

From an article on Science Daily discussing the study:

Researchers asked participants in the PROTECT study . . . to report how frequently they engage in word and number puzzles and undertake a series of cognitive tests sensitive to measuring changes in brain function. They found that the more regularly participants engaged with the puzzles, the better they performed on tasks assessing attention, reasoning and memory.

From their results, researchers calculate that people who engage in word puzzles have brain function equivalent to ten years younger than their age, on tests assessing grammatical reasoning, and eight years younger than their age on tests measuring short term memory.

Yes, this is only one study, and yes, obviously more testing and sampling is needed to apply this to the millions upon millions of folks age 50 and older who might benefit from this. But it’s worth giving this topic deep consideration. A sample size of 19,000 is impressive, and there’s no profit or “brain-training” scam behind the study.

And, regarding Supposition C, while this study didn’t offer anything definitive, it remains a possibility. Dr. Anne Corbett of the University of Exeter Medical School said, “We can’t say that playing these puzzles necessarily reduces the risk of dementia in later life but this research supports previous findings that indicate regular use of word and number puzzles helps keep our brains working better for longer.”

How much longer, who can say? But, when it comes to better brain health, it seems we can finally say that puzzles are good for you. (I always suspected.)


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