For centuries nostalgia was viewed as an illness of the brain or mind. The consensus was that nostalgia caused physical and mental distress and by orienting people’s attention to the past, it prevented them from living fully and healthily in the present. However, this view lacked scientific support. In recent years, social psychologists have employed scientific methods to more systematically consider the psychological effects of nostalgia. Findings from these studies refute previous theories that labeled nostalgia as an illness. Instead, this research demonstrates that nostalgia is good for...