A recent study shows that people who were more active had more grey matter. The MRI scan of showed an increase in grey matter volume in the Hippocampus region or the region of your memory.
![[Image: 121126-gray-matter-exercise-kb-12p.photoblog500.jpg]](http://msnbcmedia.msn.com/j/MSNBC/Components/Photo/_new/121126-gray-matter-exercise-kb-12p.photoblog500.jpg)
This study was done among older people and this also shows that the most active not only burned more calories but also had 5% more grey matter than those who were less active.. read on.. for more information.