<p>Sudoku calms you down.</p><p>Sudoku keeps your brain healthy.</p><p>Sudoku protects you from alzheimer's.</p><p>Sudoku allows you to spend quality time.</p><p>Sudoku is a passion.</p><p>You can enjoy the pleasure of solving Sudoku with the carefully prepared SUDOKU for a Healthy Brain series. There are two puzzles of ideal size on each page. The solutions to all puzzles are listed at the end of the book.</p>