A study published in the Journal of Personality and Social Psychology examined how participants felt about revenge. The study found that when imagining revenge, participants thought they would feel better if they got revenge. But, when participants actually did something to get revenge and harm the offender, they felt worse. Not a good outcome. And, while there are some studies that show revenge having a positive effect, the positive effect is on your mood. This study found that the participants’ mood was improved from the aggression associated with getting revenge on the wrong-doer. So, sure — you might feel better, for a few moments. Your mood might improve. But, your mood is temporary and influenced by any number of things.