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  1. Drug addiction (substance use disorder) - Mayo Clinic

    Jun 20, 2025 · Drug addiction, also called substance use disorder, is a disease that affects a person's brain and behavior and leads to an inability to control the use of a legal or illegal drug or medicine.

  2. Understanding Drug Use and Addiction DrugFacts

    Jun 6, 2018 · Provides an overview of drug use and addiction, including what happens in the brain during drug use, why some people become addicted while others don't, and the importance of …

  3. What Is a Substance Use Disorder? - Psychiatry.org

    Substance use disorder (SUD) is a complex condition in which there is uncontrolled use of a substance despite harmful consequences.

  4. Treatment of Substance Use Disorders | Overdose Prevention | CDC

    Apr 25, 2024 · Like many other chronic conditions, treatment is available for substance use disorders. While no single treatment method is right for everyone, recovery is possible, and help is available for …

  5. What is Addiction? | Definition, Causes, Symptoms, & Treatment

    Dec 22, 2025 · Addiction happens when a person cannot control their substance use, and they continue to use a drug or alcohol despite harmful consequences. Substance use disorders typically develop …

  6. Substance Use Disorder - Causes, Symptoms, Treatment & Help

    Aug 12, 2025 · Learn about common substances, how they affect people, and find resources to help. Prevention and early intervention strategies can reduce the impact of substance use and mental …

  7. Addiction: What It Is, Causes, Symptoms, Types & Treatment

    Mar 16, 2023 · Addiction is a chronic (lifelong) condition that involves compulsive seeking and taking of a substance or performing of an activity despite negative or harmful consequences.

  8. Substance addiction - Harvard Health

    The most common addictions involve the use of alcohol, tobacco, other legal and illegal drugs, and other mood-altering substances. The use of these substances may be physically and psychologically …

  9. Substance Use - Community - Wyoming Department of Health

    Free help navigating resources or help in advocating. Can’t find what you are looking for? Please contact the Behavioral Health Division at (307) 777-5817 or toll free at 1-800-535-4006.

  10. Drug Addiction: Definition With Examples and Support

    Dec 29, 2025 · Drug addiction, or substance use disorder, is a mental health condition that can have lifelong impacts. Though it's a treatable illness, substance use disorder recovery often involves a …