Though he didn’t have the science to back up his beliefs about the benefits of walking, Henry David Thoreau was onto this truth long ago. “Methinks that the moment my legs begin to move, my thoughts begin to flow,” he wrote. In her book Wanderlust, author Rebecca Solnit noted the connection between the act of walking and how we experience the world. “Walking shares with making and working that crucial element of engagement of the body and the mind with the world,” she wrote, “of knowing the world through the body and the body through the world.”