2-in-1 - ACTIVITY BOOK FOR ADULTS +100 Large Print Puzzles. Exercising your brain is like exercising your body--with the right program, you can keep your brain young, strong, agile, and adaptable. here are +100 puzzles Wordsearch and Sudoku that are both fun and engaging to play, and are expertly designed to give your brain the kind of workout that stimulates neurogenesis, the process of rejuvenating the brain by growing new brain cells. Don't Hesitate! Exercice Your Mind & Have More FUN Today By Clicking the "Add to Cart" Button.