negative when i did it, it was just gone. >> these are kids that grow up in great households. stable households. >> dana's story isn't shocking to scott macy who says he counsels many high-achieving young women and men who have sold themselves for drugs. >> heroin addiction or opiate addiction is a physical as well as a mental. you know. it's what we consider a brain disease. >> a former addict, scott macy knows firsthand the devastating impact of what is known as chasing the dragon. like dana, he lived a double life going back and forth from his white-collar job to detroit's east side to feed his addiction. >> addiction just takes over any type of thought process. any type of, you know, just takes over their life. and you know, it's just an obsession of the mind. >> dana says her $20 a day fix quickly escalated to a $300