Going for a walk can help with processing thoughts for several reasons. One reason is that physical activity, such as walking, has been shown to increase blood flow to the brain, which can improve cognitive function and promote the formation of new neural connections. This can make it easier to process and organise thoughts and ideas.
Another reason is that walking can be a form of "incidental exercise" which can help to clear the mind by providing a physical outlet for stress and tension, allowing the brain to focus on the task at hand. This can also serve as a distraction from rumination which can be a major cause of mental health issues such as anxiety and depression.
Additionally, walking in nature has been shown to have a positive impact on mental well-being. Studies have found that spending time in nature can reduce symptoms of stress, anxiety and depression, and improve overall mood. Being in nature can help to provide a sense of perspective and can give people the space they need to process and reflect on their thoughts and feelings.
Lastly, walking allows you to detach from your screens and technology, which can give your mind a break and ease the constant stimulation that it's exposed to. This can help to reduce mental fatigue and improve focus, thus leading to better thoughts processing.
Overall, going for a walk can be an effective way to process thoughts and improve cognitive function by increasing blood flow to the brain, providing a physical outlet for stress and tension, being in nature and giving a break from screens.