A new national survey finds 43% of adults who say they needed substance use or mental health care in the past year did not receive that care, The Hill reports.

Once a state legalizes recreational marijuana, residents are more likely to start using it, even those below the legal age of 21, according to a new study.

More than one billion methamphetamine tablets were seized in East and Southeast Asia last year for the first time, according to a new report by the United Nations Office on Drugs and Crime.

Find more of our must-reads in policy news, including a survey finding barriers to care that prevent many from accessing needed services.

View our curated digest of the latest research news, including a study on use patterns of non-nicotine e-cigarettes among adolescents, young adults and adults in the United States.