Walking and Thinking
 

Roger Berkowitz
I like to tell my students to read aloud. Whether it is poetry or philosophy, reading the words aloud gives them a physicality and sound that is part of their sense. Also, read in different places. And read walking. To read and talk and think while walking along a wooded path focuses the concentration and also ties the meaning of the word to the world. It seems there is some science behind this. Ferris Jabr argues that there are good reasons why walking encourages creativity of thought. 

What is it about walking, in particular, that makes it so amenable to thinking and writing? The answer begins with changes to our chemistry. When we go for a walk, the heart pumps faster, circulating more blood and oxygen not just to the muscles but to all the organs—including the brain. Many experiments have shown that after or during exercise, even very mild exertion, people perform better on tests of memory and attention. Walking on a regular basis also promotes new connections between brain cells, staves off the usual withering of brain tissue that comes with age, increases the volume of the hippocampus (a brain region crucial for memory), and elevates levels of molecules that both stimulate the growth of new neurons and transmit messages between them….
In a series of four experiments, Oppezzo and Schwartz asked a hundred and seventy-six college students to complete different tests of creative thinking while either sitting, walking on a treadmill, or sauntering through Stanford’s campus. In one test, for example, volunteers had to come up with atypical uses for everyday objects, such as a button or a tire. On average, the students thought of between four and six more novel uses for the objects while they were walking than when they were seated. Another experiment required volunteers to contemplate a metaphor, such as “a budding cocoon,” and generate a unique but equivalent metaphor, such as “an egg hatching.” Ninety-five per cent of students who went for a walk were able to do so, compared to only fifty per cent of those who never stood up. But walking actually worsened people’s performance on a different type of test, in which students had to find the one word that united a set of three, like “cheese” for “cottage, cream, and cake.” Oppezzo speculates that, by setting the mind adrift on a frothing sea of thought, walking is counterproductive to such laser-focussed thinking: “If you’re looking for a single correct answer to a question, you probably don’t want all of these different ideas bubbling up.”