Some Teens May Be Pre-Wired for Addiction: Study

ABC News, Christopher Tokin
 
So have we finally discovered what causes addicts to be addicts? While researchers say we can't entirely set aside environmental and social factors such as good parenting, peer-pressure, or stress, the findings do suggest that for some, the pull toward risky behavior is stronger than for others. "None of us has a perfect genetic make-up, and risk factors for addiction are etched into our DNA," says Dr. Paul Thompson, professor of neurology at UCLA. "But the risk of addiction is a mix of genetic liability, our life experiences, and bad luck. "None of these alone will make us addicts," he says, "but in aggregate, they can be overwhelming."
 
http://abcnews.go.com/blogs/health/2012/04/30/some-teens-may-be-pre-wi
red-for-addiction-study/