Time to get your walking shoes on, get your bike out of the garage, dust off your stationary bike.....

New study from New Mexico HIghlands University "How Walking Benefits the Brain"

"“What is surprising is that it took so long for us to finally measure these obvious hydraulic effects on cerebral blood flow,” first author Ernest Greene explained. “There is an optimizing rhythm between brain blood flow and ambulating. Stride rates and their foot impacts are within the range of our normal heart rates (about 120/minute) when we are briskly moving along.”
http://neurosciencenews.com/neurobiology-walking-6487/

Researchers report on the neurological benefits of talking a walk.