What the evidence says

What helps a mind stay vital

The strongest evidence for protecting a sharp mind isn’t any single game — it’s a whole way of living. Six things keep coming up across the research:

• Mind — Puzzles, learning, and staying curious
• Move — Physical activity, any amount, most days
• Connect — Real conversations with real people
• Sleep — Consistent, restful sleep
• Nourish — Balanced, unhurried meals
• Learn — Something genuinely new, on purpose

What puzzles can — and can’t — do

Doing a puzzle regularly reliably makes you better at that puzzle, and at puzzles quite like it. That part is well established.

What the research does not support is the idea that puzzle games make your everyday thinking sharper across the board. The best available meta-analyses find that broader benefit — researchers call it "far transfer" — essentially doesn’t show up. A few specific, narrower approaches (like structured speed-of-processing training) do have real trial evidence behind them for particular outcomes; we say so plainly below when that’s the case, and we don’t stretch it further than the data does.

How we designed Mind Vitality around this

Untimed, always.

Speed pressure makes people feel worse about their own minds, not better — the opposite of the point. Every game here can be played at any pace, with no clock in sight.

A different kind of puzzle every day.

Since one game mostly sharpens that one game, we rotate eight different kinds — words, numbers, memory, logic, trivia — so you get variety rather than narrow repetition.

Hints that teach, not just help.

Every puzzle ends with a "Learn from it" panel — a fact, an explanation, a reason a word or answer makes sense. The habit of curiosity is the actual goal, not just a solved grid.

A whole-lifestyle plan, not just games.

The six-pillar tips sit alongside the puzzle for a reason: the best evidence for protecting a sharp mind is lifestyle — movement, sleep, connection, and diet — and we’d rather point you at all of that honestly than sell you a single "brain game" as a shortcut.

Read the studies

• Sala, G. & Gobet, F. (2023). Meta-analytic review of cognitive training studies.

  Across dozens of trials, people who train on a game-style task reliably get better at that task and close relatives of it ("near transfer"). Improvement carrying over to general everyday thinking ability ("far transfer") was essentially not found.

  Search PubMed for this study

• ACTIVE trial lineage (speed-of-processing training, the method behind BrainHQ).

  This is one of the few cognitive-training approaches with real randomized-trial evidence — it has been clinically proven to improve processing speed and, in later follow-up, reduce some real-world outcomes like at-fault driving incidents.

  Search PubMed for this study

• NEJM Evidence (2023). Crossword solving and cognitive change in mild cognitive impairment.

  In a clinical study of people with mild cognitive impairment, regular crossword solving was associated with slower decline on standard cognitive tests than a comparison computerized training program.

  Search PubMed for this study

• BrainHQ / McGill University (2025). Biochemical changes from cognitive training.

  Brain-imaging work found measurable changes in a brain chemical system (cholinergic signaling) after a course of targeted cognitive training — early evidence that the brain physically responds, not just proof of everyday benefit.

  Search PubMed for this study

• FINGER trial (Finnish Geriatric Intervention Study).

  A multi-year trial combining exercise, diet, social and cognitive activity, and cardiovascular monitoring found this whole-lifestyle combination protected thinking ability better than any single piece alone — the strongest evidence in this field points to lifestyle, not games.

  Search PubMed for this study