You don't have to go wilderness trekking to make nature more a part of your life.
Green spaces are calming, creating what psychology researchers call “soft fascination,” in which you're engaged but not taxing yourself the way you do when you navigate city streets or drive.
Try putting beautiful nature scenes on your screen saver, especially if they change, so they catch your eye with a new image.
When volunteers wear electrodes in a lab and look at photos of natural or urban scenes, their brain waves are much calmer when they look at the greenery.
Even better if you can live near trees and gardens. Research shows that people who live amid concrete have more cortisol, a stress hormone, in their saliva than those who live near trees and parks. Children with attention deficits tend to concentrate more after walking through parks.