Nothing on TV? READ, being a bookworm boosts brainpower to function younger. Reading, writing & arithmetic aren’t just for kids. Participating in brain-stimulating activities at any age helps you preserve memory. Keeping your mind challenged slows the rate of age-related mental decline. In the journal Neurology, Researchers found those who remained mentally challenged and stimulated in their later years had a 32% reduced rate of decline compared to those with average mental activity.