My Group Move Blogs
Stop Doing Sudoku. Start Doing This.
Oct 07, 2026
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Millions of people do a puzzle a day because they believe it keeps their brain sharp. The research points somewhere far more interesting, and it is a place your participants already visit every week: your group fitness class.
Sudoku Makes You Good at Sudoku
Sudoku, crosswords, word games, and b...
Your Brain Drills Might Be a Waste of Time
Sep 23, 2026
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This year, two studies looked at brain training from very different angles. One followed people for 20 years. The other tested dual tasking in the pool. Both point to the same thing, and it is something most instructors are getting wrong.
The Brain Training That Still Worked After 20 Years
In F...