The Impact Bias

The tendency for people to overestimate the duration or intensity of their future feelings.

This bias says, it's not going to be as bad—or as fab!—as you might imagine, so relax. In other words, people seem to think that if disaster strikes, it will take longer to recover emotionally than it actually does. Conversely, if a happy event occurs, people overestimate how long they will feel elated, thrilled and titillated. The mind moves on, or does it?  What about obsessing over bad things?