Genevieve Williams discusses how exercise helps develop the brain. For decades, the connection between physical movement and cognition was not well understood, but evidence now clearly shows they are strongly linked. The cerebellum, which coordinates movement, also feeds information back to the cortex, strengthening areas involved in learning. Exercise increases blood flow and oxygen to the brain, influencing genes to improve memory and learning. It also boosts brain-derived neurotrophic factors associated with neural growth. Studies find students who exercise regularly have better academic performance and classroom behavior than those who do not participate in daily physical education.