Angry people often believe that they are more intelligent than they actually are. A new study has found has found that anger as an emotion is quite complicated and that it has a relationship with other negative emotions like depression or anxiety. Study author Marcin Zajenkowski of the University of Warsaw said: Anger is more approach-oriented and associated with optimistic risk perception and generally optimistic bias. He also added The study stemmed out of the thought on whether people with high levels of anger manifest a bias in perception of their abilities and competence. According to IBTimes report this study