* In “Bad is stronger than good” (Review of General Psychology, 2001), Dr. Roy Baumeister writes: “Perhaps the broadest manifestation of the great power of bad events than good to elicit lasting reactions is contained in the psychology of trauma . . . Many kinds of traumas produce severe and lasting effects on behavior, but there is no corresponding concept of a positive event that can have similarly strong and lasting effects. In a sense, trauma has no true opposite concept . . . It is possible that such events have simply eluded psychological study, but it seems more likely that the lack of an opposite concept for trauma indicates the greater power of bad than good single events to affect people.”