People have many myths about anger that cause them to categorize the issue in a certain way. For instance, some people consider anger to be biological or hereditary, but this myth does not have any solid foundation. Although some people are more prone to anger due to their psychophysical make-up or emersion in the modes of passion and ignorance, their socialization or quality of association will have a greater impact on their reactions. Although we do bring forth other infl uences into a situation such as our karma, which affects the ways in which we respond to specifi c situations, it is a myth that anger is biological and a permanent, unchangeable aspect of the body.
Reference: Spiritual Warrior IV: Conquering the Enemies of the Mind, Chapter 3