Revealed: Why drug users prefer heroin at home, but cocaine while out. New research shows that response of brain and emotions to addictive drugs depends on both the setting and the substance of use. The findings could change treatments for drug users to help prevent relapses. Source 9k.
Getting to know what is going on in the mind of a drug user is a good way to get them clean. But then again they have to be willing to get clean too and not just go through the motions of saying they want to be clean just to go back to the drug family they came from and back into that culture. I hope this research helps those that want it.