Brain Trainer 90-Day Workout is a complete brain exercise regime, designed by neuroscientist, trained clinical psychologist and international expert on brain rehabilitation, Professor Ian Robertson. Conveniently laid out in warm-up, cool-down and 90 daily workout sections, each puzzle targets specific brain functions. Included are strategies to boost your brain's performance in areas such as memory and problem solving. Professor Robertson also shares his 'mind-tuning' techniques which may help in everyday life: techniques such as the 'mental walk' to aid memory, 'taking five' to help absent-mindedness, and 'mental pictures' to aid creativity.