Green and blue may be the colors of better health for seniors.

Older adults who spend even a little time outdoors in natural landscapes earn benefits that help their emotional and mental well-being, according to a new study. Simply sitting on a park bench and enjoying the grass and flowers or finding a spot near running or still water can have what researchers said was "a tremendous impact on overall health" by easing isolation and loneliness.

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Researchers noted that even a "mundane experience" such as a walk to the end of your block and back can be beneficial, as can tending a potted plant on your windowsill.

The study, "Impacts of Blue and Green Spaces for Older Adults," was published in the journal Health and Place.