This is so far out of my area of expertise that I have no way of evaluating methodology or results, except to point out that it’s worth thinking about the water policy implications:
The Association between Lifelong Greenspace Exposure and 3-Dimensional Brain Magnetic Resonance Imaging in Barcelona Schoolchildren
Lifelong exposure to greenness was positively associated with gray matter volume in the left and right prefrontal cortex and in the left premotor cortex and with white matter volume in the right prefrontal region, in the left premotor region, and in both cerebellar hemispheres. Some of these regions partly overlapped with regions associated with cognitive test scores (prefrontal cortex and cerebellar and premotor white matter), and peak volumes in these regions predicted better working memory and reduced inattentiveness.
It is at the very least another reminder that my longstanding enthusiasm for water “conservation” may be missing things.
Dadvand, Payam, et al. “The Association between Lifelong Greenspace Exposure and 3-Dimensional Brain Magnetic Resonance Imaging in Barcelona Schoolchildren.” Environmental Health Perspectives 27012: 1.