Addiction psychiatry is a psychiatric subspecialty concerning to the assessment, diagnosis and treatment of people suffering from addiction disorders. This may include disorders involving lawful and unlawful drugs, gambling, sex, food, and other impulse control disorders. Addiction psychiatrists are substance abuse specialists. Rising amounts of logical information, such as the health effects and treatments to substance abuse, have led to advancements in the field of addiction psychiatry. These advancements in considering the neurobiology of rewarding behavior, along with federal funding, has allowed for ample opportunity for research in the discipline of addiction psychiatry. Addiction psychiatry is an increasing field, and currently there is a high demand for substance abuse experts in both the private and public sector.