Claim: Evil is commonly associated with emotions.

Anger or wrath is an intense emotional response . It is an emotion that involves a strong uncomfortable and emotional response to a perceived provocation , hurt or threat . Anger can occur when a person feels their personal boundaries are being or going to be violated . Some have a learned tendency to react to anger through retaliation as a way of coping . Raymond Novaco of University of California Irvine , who since 1975 has published a plethora of literature on the subject , stratified anger into three modalities : cognitive -LRB- appraisals -RRB- , somatic-affective -LRB- tension and agitations -RRB- , and behavioral -LRB- withdrawal and antagonism -RRB- . William DeFoore , an anger-management writer , described anger as a pressure cooker : we can only apply pressure against our anger for a certain amount of time until it explodes .   Anger is an emotional reaction that impacts the body . A person experiencing anger will also experience physical conditions , such as increased heart rate , elevated blood pressure , and increased levels of adrenaline and noradrenaline . Some view anger as an emotion which triggers part of the fight or flight brain response . Anger is used as a protective mechanism to cover up fear , hurt or sadness . Anger becomes the predominant feeling behaviorally , cognitively , and physiologically when a person makes the conscious choice to take action to immediately stop the threatening behavior of another outside force . The English term originally comes from the term anger of Old Norse language . Anger can have many physical and mental consequences .   The external expression of anger can be found in facial expressions , body language , physiological responses , and at times public acts of aggression . Animals , for example , make loud sounds , attempt to look physically larger , bare their teeth , and stare . The behaviors associated with anger are designed to warn aggressors to stop their threatening behavior . Rarely does a physical altercation occur without the prior expression of anger by at least one of the participants . While most of those who experience anger explain its arousal as a result of `` what has happened to them , '' psychologists point out that an angry person can very well be mistaken because anger causes a loss in self-monitoring capacity and objective observability .   Modern psychologists view anger as a primary , natural , and mature emotion experienced by virtually all humans at times , and as something that has functional value for survival . Anger is seen as a supportive mechanism to show a person that something is wrong and requires changing . Anger can mobilize psychological resources for corrective action . Uncontrolled anger can , however , negatively affect personal or social well-being and impact negatively on those around them . It is equally challenging to be around an angry person and the impact can also cause psychological/emotional trauma if not dealt with . While many philosophers and writers have warned against the spontaneous and uncontrolled fits of anger , there has been disagreement over the intrinsic value of anger . The issue of dealing with anger has been written about since the times of the earliest philosophers , but modern psychologists , in contrast to earlier writers , have also pointed out the possible harmful effects of suppressing anger . Displays of anger can be used as a manipulation strategy for social influence .