Do Daydreams Bum You Out?

Whether in line at the supermarket or sitting in traffic on the highway, the human mind is prone to wander at the slightest sign of boredom. But daydreaming may not be as harmless as it seems: according to a study published Thursday in the journal Science, a wandering mind is often an unhappy one. Using an iPhone application that prompts users to answer survey questions about their mental state throughout the day, researchers at Harvard University tracked how frequently the minds of 2,250...Full Story