A Walk In The Park A Day Keeps Mental Fatigue Away

Hmmm interesting: A Walk In The Park A Day Keeps Mental Fatigue Away: "The authors suggest that urban environments provide a relatively complex and often confusing pattern of stimulation, which requires effort to sort out and interpret. Natural environments, by contrast, offer a more coherent (and often more aesthetic) pattern of stimulation that, far from requiring effort, are often experienced as restful. Thus being in the context of nature is effortless, permitting us to replenish our capacity to attend and thus having a restorative effect on our mental abilities."
Of course this has important things to say about urban planning and mission.