Future research should follow subjects prospectively, differentiate between greenness quantity and quality, and identify mediators and effect modifiers of greenness-health associations.
James, P; Banay, RF; Hart, JE et al
Current Epidemiology Reports 2, April 2015, 131–142
The body of literature assessing the effects of greenness on health provides some evidence that greenness may be beneficial for physical activity, obesity, mental health, birth outcomes, cardiovascular outcomes, and mortality.