I was reading an article on About.com which describes what's involved in fibro fog: dyscalculia -- a learning disability that deals with math. It's similar to dysphasia, which includes those word-finding difficulties so many of us have. They also had a link to some games you could play to exercise your brain. Like Sudoku, Tetris, Boggle and others. My problem with these games is I don't have the patience to finish any of them. Have any of you found that, when you start something and find that you're the least bit challenged, you lose patience with that activity? I can only do Level 1 Sudoku and only until I experience some concentration issues. Then I quit. If I don't, I get very anxious.