Elizabeth King Humphrey shares a recent study.
Each study found that people in a bad mood performed tasks better than those in a good mood. Grumpy people paid closer attention to details, showed less gullibility, were less prone to errors of judgment and formed higher-quality, persuasive arguments than their happy counterparts. One study even supports the notion that those who show signs of either fear, anger, disgust or sadness—the four basic negative emotions—achieve stronger eyewitness recall while virtually eliminating the effect of misinformation
