Sunny side up
From The Economist print edition
FOR some people in this world, the glass always seems to be half-full. For others it is half-empty. But how someone comes to have a sunny disposition in the first place is an interesting question.
It has been known for a long time that optimists see the world selectively, mentally processing positive things while ignoring negative ones, and that this outlook helps determine their health and well-beingread the rest of the story