How Exercise Fuels the Brain
By GRETCHEN REYNOLDS
Shannon Stapleton/Reuters
Moving the body demands a lot from the brain. Exercise activates countless neurons, which generate, receive and interpret repeated, rapid-fire messages from the nervous system, coordinating muscle contractions, vision, balance, organ function and all of the complex interactions of bodily systems that allow you to take one step, then another.Read more ... http://well.blogs.nytimes.com/2012/02/22/how-exercise-fuels-the-brain/