Understanding Addiction

Addiction is classified as a chronic brain disorder by the American Medical Association, the American Society of Addiction Medicine, and the National Institute on Drug Abuse. While the initial decision to use a substance may be voluntary, repeated use causes lasting changes to brain circuits that control reward, stress, and self-control — making it extremely difficult to stop without professional help.

Common warning signs include: inability to stop using despite wanting to, increasing tolerance (needing more for the same effect), withdrawal symptoms when not using, neglecting responsibilities at work or home, continued use despite relationship or health problems, and spending excessive time obtaining or recovering from substance use. The DSM-5 uses 11 criteria to diagnose substance use disorder.

Yes. Millions of people achieve and maintain long-term recovery from addiction every year. Recovery is a process that often involves professional treatment, medication-assisted therapy, behavioral counseling, peer support groups, and ongoing lifestyle changes. Research shows that treatment outcomes for addiction are comparable to those for other chronic conditions like diabetes and hypertension.

Addictive substances flood the brain's reward circuit with dopamine, producing intense pleasure. Over time, the brain adapts by reducing natural dopamine production and the number of dopamine receptors. This means activities that once brought joy no longer feel rewarding, and the person needs the substance just to feel normal. The prefrontal cortex, responsible for judgment and impulse control, also becomes impaired.

Yes. Under the Affordable Care Act (ACA) and the Mental Health Parity and Addiction Equity Act, most health insurance plans are required to cover substance use disorder treatment at the same level as other medical conditions. Coverage details vary by plan. You can verify your benefits by contacting your insurer or calling SAMHSA at 1-800-662-4357.

Physical dependence means the body has adapted to a substance and experiences withdrawal symptoms without it. Addiction includes physical dependence but also involves compulsive drug-seeking behavior, loss of control over use, and continued use despite harmful consequences. A person can be physically dependent on a medication (e.g., blood pressure drugs) without being addicted to it.