Birth of love desire. Representation of what it happenning in the brain at the birth of love desire. Blue arrows : The hippocampus (memory area, in yellow) and the amygdala (centre of emotions, in purple) send information to the prefrontal cortex (centre of reasoning and decision-making, in green), that stimulates on its turn the hypothalamus (centre of corporal and hormonal reactions, in blue). The body is bombarded of hormones. Reactions : heart palpitations, red on the cheeks, legs trembling... Red arrows : stimulated by the secretion of dopamine (see level of secretion in the tube on the left of the illustration), the nucleus accumbens (pink area) stimulates the brain and the prefrontal cortex to push for action. Green arrow : The prefrontal cortex (centre of reasoning) moderates the action of the nucleus accumbens.