These responsive chemicals are adrenaline, which is stimulated by stress and anxiety, and nor-adrenaline, which is more directly involved in aggressive responses. The second form of evidence in support of physiological aggression, is the concept of inequality, or more specifically the perception of inequality. A perception of inequality would most likely have been initiated during the development of group mentality, as well as various forms of human individualism, stemming from even further back in human evolution . These perceptions, which are a natural development of Human Nature , inevitably lead to power struggles, and as a result, aggression. Physiologists on this topic believe that as technology advanced, aggression was suppressed, and to a certain extent, controlled by the development of morals and reason.
Aggression becomes more of a secondary response, within the human psyche, to possible danger s.
The ideas I have mentioned so far, seem to support the theory that the suppression of aggression is an ongoing struggle for every man. Plus, sociobiologists suggest that otherwise, aggression would not be present in society today. Criminal violence and neurosis are a result of improper releases of aggression. This release is done through rituals, performed by both humans and animals. Examples of animal rituals would be hunting, various kinds of competition and conquest, and of course mating.