http://www.newsnation.in/lifestyle/health-and-fitness/around-the-age-of-40-aerobic-exercises-on-daily-basis-may-boost-your-memory-up-study-article-186429.html
Citando:
"Researchers concluded that though exercise has no effect on total hippocampal volume, it did significantly increase the size of the left region of the hippocampus in humans. This is how exercise benefits your brain."