The All-Around IQ Challenger Sudoku Word Search Book 240 Puzzles for Adults - Paperback

by Speedy Publishing (Author)

You're already smart so why do you still have to challenge your IQ through brain games? That's because you want to keep your brain active and sharp. As you age, your brain loses its "energy" and you fall at risk for Alzheimer's and dementia. Brain games like Sudoku will encourage you to use your brain so you don't lose it.