Whether a person decides to use alcohol or drugs is a choice, influenced by their environment–peers, family, and availability.  But, once a person uses alcohol or drugs, the risk of developing alcoholism or drug dependence is largely influenced by genetics.  Alcoholism and drug dependence are not moral issues, are not a matter of choice or a lack of willpower.  Plain and simple, some people’s bodies respond to the effects of alcohol and drugs differently.

Family History and Genetics