The second theory is similar and is known as "evolutionary neuroandrogenic (ENA) theory of male aggression".   Testosterone and other androgens have evolved to masculinize a brain in order to be competitive even to the point of risking harm to the person and others. By doing so, individuals with masculinized brains as a result of pre-natal and adult life testosterone and androgens enhance their resource acquiring abilities in order to survive, attract and copulate with mates as much as possible.  The masculinization of the brain is not just mediated by testosterone levels at the adult stage, but also testosterone exposure in the womb as a fetus. Higher pre-natal testosterone indicated by a low digit ratio as well as adult testosterone levels increased risk of fouls or aggression among male players in a soccer game.  Studies have also found higher pre-natal testosterone or lower digit ratio to be correlated with higher aggression in males.     
Camilla Bo’ is an Italian freelance journalist and stylist. After two years of study in Paris she returned to her native Rome to study architecture. The art of critique proved more fruitful for Camilla and she began to write for the Association of Art and Critic about art and design and on her personal blog Choufouchouf. Focusing on the relation and communication between fashion and art, she decided to follow her creative nature not only giving a voice to the library she has on her laptop but also as inspiration for editorials. She’s now based in London, attending the course of «Art Direction for Fashion» at the Central Saint Martins College of Art.