The document discusses several risk factors for alcoholism and drug addiction. Some key risk factors include starting alcohol or drug use during adolescence, having a family history of substance abuse or experiencing abuse as a child, and having certain psychiatric or behavioral disorders. Adolescents who begin drinking or using drugs are much more likely to develop an addiction compared to those who begin later. Those with a family history of substance abuse or a personal history of abuse or neglect are also at higher risk. Certain psychiatric conditions like depression, anxiety, bipolar disorder and ADHD can increase one's risk as well. Race and gender can also influence risk levels, though biological and cultural factors affecting risk among groups are not fully understood.