Writers novels and songs have centuries claimed that love is a drug. Scientists have now gone a step further to prove this assertion. They conducted tests the romantic relationships prairie voles. Different pairs the mouse-like rodents were tested for levels dopamine - a neurotransmitter that plays a role our seeking pleasure and a craving for addictive things. It can provide an intense feeling reward. The researchers found that the voles released large amounts dopamine when they were physically with their "established partner". Researcher Dr Zoe Donaldson said parts the voles' brains lit " a glow stick" when they were reunited with their mates, and dimmed when unknown voles.
The researchers said their studies help to explain much about the complexities human relationships. They say dopamine our brains plays a key part when falling love, and in the grief experienced when breaking up a partner. Dr Donaldson said: "As humans, our entire social world is basically defined different degrees selective desire to interact different people, whether it's your romantic partner or your close friends." She added: "This research suggests that certain people leave a unique chemical imprint our brain that drives us to maintain these bonds time." Research also suggests that wom
