The human emotion of expressions has three main functions. They contribute to the openness and mastery of emotional experiences; they communicate something about internal states and intentions to others; and activate emotions in others, a process that can explain angry, aggressive, and violent behavior (Macropedia 1992: 18: 248). This essay will consider the meaning of anger, aggression and violence in terms of emotions and their activation, structure and functions at cultural, environmental and social levels. Anger, aggression and violence are three intense sources of emotions and emotional expression, which are psychologically defined as an emotional state. These feelings often include action tendencies and tend to trigger certain perceptual and cognitive processes. Some believe that intense emotions such as anger, aggression and violence are random factors or influences on thoughts, actions, personality and social relationships according to the Macropaedia on Human Emotion (1992: 18: 248). Anger is seen as a strong emotional reaction to a situation. Mostly resulting from stress in individual life and resulting from an escalation of conflict. There are two general types of anger. The first is a general irritation, which most people carry with them into everyday life. To have 1 level of irritation, human instinct shows that it is much easier to lose your temper over a simple matter. And for those who have an external locus of control, conflict is very difficult to avoid when it arises from instinct. The other case is that anger is a secondary emotion when it is generated by circumstances of disappointment, hurt, frustration, pain, unmet expectations and so on. This is also seen as a self-protection tool in situations where an angry personality may feel vulnerable by admitting pain or disappointment. Anger not only changes the emotional state but also the physical one. When you get angry, the body creates stress, causing an increase in heart rate, sweating, an increase in breathing rate and tension in the muscles. Alongside the two types of anger there are two types of controlling anger: Anger-in, which labels people who have difficulty even admitting they are angry, and anger-out for people who express their anger, often quietly. However, there are tips on how to control anger in four simple steps: take a break, relax... middle of paper... magic and memory are important causes of these intense emotions. They also agree that once these emotions are activated, emotion and cognition influence each other. How people feel influences what they perceive, think, and do, and vice versa. ReferencesBandara. A. 1973. Aggression: A social learning analysis. Englewood Cliffs. NJ: Prentice Hall Cameron. H&Killen. E. 2004. Human Services Communications: Course Manual and Readings: Readings 3(a) and 3(b)Cox. D, Bruckner. RH and Stabb. DS 2003. The Anger Advantage: The Surprising Benefits of Anger and How It Can Change a Woman's Life. Pages 249 – 281. Donovan. F. 1999. Dealing with Anger – Self-Help Solution for Men: 'Anger is not about control; Anger is about losing control.' page 1-15.Lerner. HG 1985. The Dance of Anger, Harper & Row, New York.Luloffs. R&Chan. D. 2000. Conflict from Theory to Action, Chapter 14: “The Escalation of Conflict: Anger and Stress,” Allyn & Bacon, Boston. The New Encyclopaedia Britannica. 1992. Human Emotion: Volume 18 Pages 248 - 256. The New Encyclopedia Britannica. 1992. Social Structure and Change: Volume 27. page 414 – 420.