Properly timed exercise aids memory
Vigorous activity four hours after first learning something boosts recall

MEMORY MASTERS People who rode stationary bikes four hours after encountering new material (right bar) better remembered the material than people who didn’t exercise (left bar) or people who exercised right away (middle bar).
Lucky Business/Shutterstock (image); E.V. van Dongen et al/Current Biology 2016 (graph)