The brain is fundamentally a lazy piece of meat, according to neuroscientist Gregory Berns. But take the body attached to it on a brisk walk or jog and suddenly your meat-brain is lighting up like a Lite-Brite.
WHAT EXACTLY IS GOING ON IN THERE? "When we exercise, blood pressure and blood flow increase everywhere in the body, including the brain," Justin Rhodes, associate professor of psychology at the University of Illinois at Urbana-Champaign writes in Scientific American. "More blood means more energy and oxygen, which makes our brain perform better."
