Is physical activity in natural environments better for mental health than physical activity in other environments?

► Experimental studies show physical activity in natural environments may be better for mental health than activity elsewhere. ► Such studies tend to be small, brief and not to test effects of activity in natural environments as part of everyday life. ► This study looked for evidence of such effects in a large, real-world population. ► It found evidence that physical activity in natural environments is better for mental health than activity elsewhere. ► Each additional use of a natural environment per week is associated with about a 6% lower risk of poor mental health.