Explanation of aggression 2

Hromones are chemical messengers that travel in the bloodstream, they work by binding to receptor proteins and changing cell function 

Testosterone-is a male sex hormone secreted by the adrenal glands and testes men produce 10x more than women which can explain the idea of men being more aggressive than women 

Wagner et al- castration reduces testosterone levels in males. He castrated mice and observed that aggression levels dropped. when castrated mice are injected with tesosterone their aggression levels rose back to pre-castration levels- clearly suggests that testosterone is…