Sharpening Minds Sudoku on the Go! 100 HARD Puzzles

Puzzles Exercise Your Brain!
Studies show that people engaged in regular puzzle activities have a brain function equivalent to 10 years younger than their age! Puzzle takers also exhibit 8 years off their age on Short-term memory tests!
Regular Puzzle Play Activites has many advantages such as stimulating our brain health to improve FOCUS, Mental CLARITY and helps to trigger our MEMORY. Our bodies need physical exercise and our brains need mental exercise. Excellent for all ages and great for those that want to help keep their memory sharp and intact!
5"x8" perfect travel size--take it with you!
100 Hard puzzles