A new study has provided some proof that anger might be actually useful and rewarding. Psychologists Maya Tamir and Christopher Mitchell of Boston College and James Gross of Stanford University found out that people would prefer to be angry when doing confrontational tasks.

In their study, the researchers randomly placed participants in angry and neutral conditions by letting them play confrontational and non-confrontational video games.

Results showed that people who were angry performed better when they were playing confrontational games. They were able to kill more enemies in the game. But when they were presented with the non-confrontational games, their performance was poor.

From this, the researchers have reason to believe that people might not always want to be in pleasant disposition and would rather experience negative emotions if it's necessary. They said, "Such findings demonstrate that what people prefer to feel at any given moment may depend, in part, on what they might get out of it."