Originally Posted by
MuscleInk
There is an age-dependent risk associated with anabolic use and aggression.
Changes in the gonadal steroid environment, via the use of anabolic androgenic steroids (AAS), can affect brain development and behavior. Human and animal studies indicate that AAS exposure during adolescence alters normal brain remodeling, including structural changes and neurotransmitter function. The most commonly reported behavioral effect is an increase in aggression. AAS plays a major role in determining whether aggression is displayed, with testosterone being the most effective. The hormonal context, the environmental context, physical provocation and the perceived threat during the social encounter all influence the expression of aggression and sexual behavior. All factors together imply an altered psycho-emotional state that includes increased readiness to respond to a social encounters with heightened vigilance and motivation. Collectively, evidence to date suggests that AAS use during this critical developmental period (prior to 25) may increase the risk for maladaptive behaviors along with neurological disorders - furthering suggestions that cycling young can have permanent effects.
Among older users, AAS likely increase vigilance among users who are already aggressive, increasing their tendency to respond in a less than rational manner. In short, AAS won't change a person from passive to aggressive but may enhance aggression in those already hard wired to respond in such a manner.