Time spent outdoors in nature is like pushing a "stress reduction button" for your brain.  
Research findings, "demonstrated that tranquil  environmental scenes containing  natural features, such as the sea, cause  distinct brain areas to become  `connected´ with one another whilst  man-made environments, such as  motorways, disrupt the brain connections." 
For an article on the study go to,  Tranquil scenes have a positive impact on the brain.  

