The document discusses changes made in the DSM-5 to the classification of Substance-Related Disorders, including renaming the category to Substance Use and Addictive Disorders. Gambling Disorder is included in this category, and Internet Gaming Disorder is included in a separate section. Process and behavioral addictions beyond substance use are also acknowledged. Key diagnostic criteria for Gambling Disorder include preoccupation with gambling, tolerance, withdrawal symptoms, unsuccessful attempts to control gambling, and continuing to gamble despite negative consequences. Epidemiology, course, risk factors, and common comorbidities of Gambling Disorder are also summarized.