Some studies translated to humans, Methylation and appearance of the human 1F gene shown changed profiles in the victims of suicide and child abuse. It also revealed that the environment altered the DNA methylation patterns and affected stress response. These results adjusted birth following in response to certain kinds of maternal care (Provençal et al., 2015, p.126). These studies supported that the difference in DNA responded to social adversity was not just limited to the brain. In all Provençal et al. used epigenetics and studies that concluded early adversity produced critical and permanent epigenetic alterations. Early life environment including pre-natal and post-natal stress played a crucial role in the development of aggression. The methods they discussed were also consistent with the hypothesis that the response to early life and aggression has an immune component. Results showed strong relations between the immune system and brain. Thus, the immune system might have played a role in the overall response in the development of …show more content…
Souza (2007) described aggression as a behavior exhibited through actions that have the intention to injure property or a person (par.1). She also addresses past research involving the source, Atkinson, Smith, Bem, and Nolen Hoeksema consider aggression to be innate connecting biochemical actions and behavior studied in 2009. While Stout, Taylor, and Green observed that environmental factors have greater effects on behavior considered in 1997. (Souza, par.3) Biological theories propose that aggression could hold a genetic or hormonal element. Most studies done are Genetics and serotonin research to help with this theory. Environmental studies supported experimental studies and behavior in natural settings. Souza represented her claim by combining environmental studies with biological to conclude behavioral