We're back to dopamine

"Researchers at the University of Copenhagen have succeeded in creating a model of the way the brain releases dopamine, an important chemical involved in transmitting signals between nerve cells.

In the brain, dopamine is involved in a number of processes that control the way we behave. If an action results in the substance being released, we are more likely to repeat the action. This applies to actions such as eating, sexual intercourse or winning a competition. However, the same also holds true when individuals take harmful narcotics. Scientists believe that mental illnesses such as schizophrenia can be linked to dopamine imbalances."

Dopamine really is an amazing thing. It is probably responsible for mental illnesses and addictions.