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.     
There exist many ways of building the muscles. However, most people use laborious methods, which at times may pose a threat to the entire body health. To avoid the risk, customers are encouraged to embrace Testo Extreme Anabolic, a formula that enables you to achieve the maximum results in the best way possible. This product does not contain any traces of chemical thus safe for human consumption. It is widely offered for purchase at an affordable price. They deliver both long term and short term outcomes within a short span of time. Therefore, this product is highly recommendable for daily use before performing body exercises. Customers provide positive feedbacks about the product. It is not associated with any side effects thus safe for consumption. Therefore, customers should embrace this formula that helps to achieve optimal results.
Select Your State (*) : Select Your State Alabama Alaska Arizona Arkansas California Canada Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah . Virgin Islands Vermont Virginia Washington Washington,DC West Virginia Wisconsin Wyoming