300 challenging puzzles to improve problem-solving skills and stimulate the brain Studies have shown that puzzles like Sudoku, crosswords, cryptograms, and other "mental aerobics" can help reduce memory loss due to normal aging and minimize the risk of developing neurodegenerative diseases. Brain Games For Dummies features 300 fun mental exercises that will keep readers' neurons firing: 100 crossword puzzles, 75 Sudoku puzzles, 50 word searches, 25...