The first government-approved supervised drug injection sites in the United States have opened in New York City this week, NPR reports.

A new study finds more ridesharing trips with services such as Uber or Lyft may result in fewer alcohol-involved crashes.

More than 10% of patients who receive a pacemaker or other implantable cardiac device and fill an opioid prescription after surgery consistently take the medication for months afterwards, a new study finds. This raises the potential for addiction, researchers report in the journal Circulation.

Find more of our must-reads in policy news, including the nation's first government-sanctioned supervised injection site.

View our curated digest of the latest research news, including the influence of neighborhood contexts on adolescent substance use among ethnic minority families.