Testosterone

• Androgenic hormone that acts on areas of the brain involved with aggression
• Both sexes produce it but males produce 10 times more
• In males testosterone is produced in the testes from birth
• testosterone is linked to higher levels of aggression when testosterone levels are elevated (during puberty)
• For adult males 15 to 25 years old ,they have the highest levels of testosterone and showed the most aggression
• Mazur &Booth- Testosterone play a significant role in dominance ,competition and antisocial behaviour. the nature of the link between testosterone and aggressive behaviour is not simple 'cause and effect' mechanism.

  Higher levels of testosterone rather than causing aggression make it more likely that particular behaviour such as aggression will be expressed possibly due to impaired control