Answer to Question 1
The researchers used iPhones to gauge the mental state of 2,250 adults several times a day. They randomly contacted volunteers throughout the day and had them describe what they were doing, what they were thinking about, and how they felt on a scale of 0 to 100 . Over all, subjects' minds were wandering about 47 of the time. People who were daydreaming often reported feeling sad or worried. People who were intensely focused on what they were doing at that moment tended to report feeling much happier. By analyzing the data over time, the researchers discovered that people didn't merely fantasize when they were unhappy; instead, wandering minds led to unhappiness.
Answer to Question 2
T