Marijuana, also known as cannabis, is the most-used substance in the US after alcohol and tobacco. Research suggests around 10 percent of...

What is an opioid use disorder? What is heroin? Understanding the effects of opioids.

Cigarette smoking and vaping damages nearly every organ in the human body, and can cause lung cancer, respiratory disorders, heart disease,

Alcohol is one of the most commonly consumed intoxicating substances and legal in most parts of the world. Drinking too much can cause a...

Understand the basics of addiction, including how it affects the brain, why some people are more susceptible to developing an addiction,...

Like other chronic illnesses, substance use disorders get worse over time. There are 3 levels of severity: mild, moderate, and severe.

People have different risk factors that make them more vulnerable to developing SUDs.

“The Hijacker” explainer video breaks down how repeated substance misuse changes the brain

Doctor Nora Volkow, MD, research psychiatrist and scientist, Director of the National Institute on Drug Abuse (NIDA) at the National...