Brain Age: Train Your Brain in Minutes a Day for Nintendo DS is an enjoyable and rewarding form of entertainment that helps players exercise their mental muscles. The game was inspired by the research of Professor Ryuta Kawashima, a Japanese neuroscientist who studied the effects of reading and math exercises on stimulating the brain. Players can engage in quick activities such as solving simple math problems, counting people entering and exiting a house, drawing pictures on the Touch Screen, reading classic literature out loud, playing sudoku puzzles, among others. On your first day with Brain Age you will take tests to determine your "DS Brain Age" score which serves as measure to monitor improvement over time with daily exercises that last only minutes per day.