Exercising your brain is like exercising your body-with the right program, you can keep your brain young, strong, agile, and adaptable. Organized on an increasing scale of difficulty, here are huge puzzles, sudoku puzzle, maze puzzle, coloring pages and word game 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. Target Six Key Cognitive Functions: 1. Long-Term Memory. 2. Working Memory. 3. Executive Functioning. 4. Attention to Detail. 5. Multitasking. 6. Processing Speed.