A genetic cause has been significantly implicated in the areas of

Question

Quizplus · Accepted Answer

Research has shown that there is a genetic component to both alcoholism and opiate addiction. While environmental factors also play a role, studies of families and twins suggest that genetic factors account for approximately 50-60% of the risk for these addictions. There is less evidence of a genetic component to marijuana use and stimulant addiction, and while nicotine addiction does have a genetic component, it is not as strong as that of alcoholism and opiate addiction. Morphine and barbiturates also have a genetic component, but they are not as commonly abused as alcohol and opiates.

A Genetic Cause Has Been Significantly Implicated in the Areas