Substance use disorder (SUD) affects a person’s ability to control their use of alcohol or drugs. SUD can affect various areas of a person’s life, such as work, school, or family responsibilities.

Substance use and substance use disorder differ by the frequency of use and the effect on a person’s life. Substance use disorder is a mental health condition. Substance use refers to using both legal ...

Substance-induced mood disorders, or mental disorders, are persistent mental health conditions impacting mood that stem from the physiological effects of substances, certain medications, heavy metals, ...