How revenge aggression leads to auto-aggressive diseases.

Finally, a glimpse into a hidden world

There are basically two types of aggression. The first type is the perpetrator’s aggression. It is aimed at other people who have done nothing to provoke the perpetrator’s aggression.
The second aggression is defensive aggression. Under certain circumstances it can become revenge aggression.

Defensive aggression is a healthy response to an attack. Everyone fights back when being attacked. You protect life and limb, your own and you loved ones. All power is mobilized to defend life. You fight back.