Genes, Hormones, Neurotransmitters

• MAOA gene

  aka. warrior genes

  breaks down serotonin too quickly, the low serotonin levels decrease calmness, increase impulsivity, leading to aggression
• Testosterone

  in the limbic system

  emotional response to threats, increase competitive spirit, increasing aggression
• Cortisol

  in the limbic system, a bit in prefrontal cortex

  emotional response to threats, no decision made, pure fight or flight response
• Serotonin


  calming chemical, neurotransmitter

  the body can't be calm and aggressive the same time (reciprocal inhibition)
• Oxytocin

  bonding chemical, neurotransmitter

  makes you feel good, dulls pain, less aggression