Smile at a stranger,  WAY OVer 12,000 Views WOWWant to keep your brain sharp and your memory strong? You can. In fact, 66% of brain aging is entirely within your control if you 1) eat right, 2) stay physically healthy, 3) remain socially connected, and 4) challenge your brain by learning something new every day. Here is my segment for AMNorthWest, March 2014 on eating healthy to keep your brain youthful and your mind sharp. Photo credit:  Creative Commons License Nina Matthews via Compfight