There is strong evidence in animals that testosterone is directly associated with aggression, although this correlation is not as strong in humans. In human studies a relationship has been found between measures of testosterone in adolescent males and aggression  with similar results found in women .
- ↑ Simpson, K (2001) The role of testosterone in aggression. MJM, 6, 32-40 Full text
- ↑ Olweus D, Mattson A, Schalling D, Low H. (1988) Circulating testosterone levels and aggression in adolescent males: a causal analysis. Psychosomatic Medicine 50: 261-272.
- ↑ Ehlers CL, Rickler KC, Hovey JE. (1980) A possible relationship between plasma testosterone and aggressive behavior and socialdominance in man. Psychosomatic Medicine 36: 469-475