Thank you for the opportunity to help you with your question!
Drug and substance abuse can be contributed by genetic factors-that is, psychiatric disorders characterized
by disinhibited behavior, such
as antisocial personality disorder, attention
deficit/hyperactivity disorder, and
conduct disorder are contributed by gene and nmay lead drug abuse.leaving same enviloment or having friend whow abuse drug may influence you to abuse drug. ones behavious to determine what is right or wrong may also contribute to ones involvement with drug or substance abuse.
Please let me know if you need any clarification. I'm always happy to answer your questions.