Rock stars tend to get caught up in hedonistic pleasures, and new research might reveal why. McGill University scientists have found a connection between pleasure-boosting opiods in the brain and enjoyment in music. In other words, those who have a deep passion for music could be more likely to get a deeper pleasure from sex, recreational drugs, or food. The finding is important, as understanding the chemical roots of pleasure in the brain may lead to treatments for addiction. (Daily Mail)