A research from the Human Interaction with Nature and Technological Systems Lab at the University of Washington suggests that whenever you feel stressed out.

The study involved measuring people's heart recovery rate from minor stress when they were exposed to a natural scene through a window and when exposed to the same scene shown on a high-definition plasma screen, or a blank wall.

"The heart rate of people who looked at the scene through the window dropped more quickly than the others. In fact, the high-definition plasma screen had no more effect than the blank wall," the researchers said in a statement.
 
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