I looked into the "brain game" business back when it was everywhere (2008 or so? Early Nintendo DS). IIRC, playing these games affects the brain the same way as reading a book, or any other slightly mentally taxing (and much more affordable) activity.
I looked into the "brain game" business back when it was everywhere (2008 or so? Early Nintendo DS). IIRC, playing these games affects the brain the same way as reading a book, or any other slightly mentally taxing (and much more affordable) activity.