Keeping those little grey cells sparking

Brain fitness seems to be all the rage. Beyond Sudoku and crossword puzzles, what is there out there sharpen memory and concentration? HappyNeuron has free games plus CDs and downloads. Lumosity offers games targeted toward different abilities like speed, flexibility, memory, or problem-solving. Nifty after Fifty, with a location here in Long Beach, offers exercises to rejuvenate the mind and body.