User to Abuser: Can Certain Risk Factors Determine Cocaine and Opioid Dependence?

How does someone go from being an occasional drug user to abuser? Are there any risk factors that can predict how quickly a person can develop a dependence to a certain drug? According to a new study being published in Addictive Behaviors (February 2014), there are. And hopefully such insights can help doctors amp up preventative measures for those most vulnerable.