Mention “brain games” and my first thought is of those computerized challenges that promise to boost memory and alertness in a sluggish cerebellum. Pop-up ads for mental agility tools flash across the screen every time I turn on my computer. Apparently, my laptop has detected my age and revealed it to an endless stream of marketers! But mention “brain games” to Winston Maxwell, MD, and a very different vision pops up. It’s a bouncing ball on a Ping-Pong table that fires the n