Teenage aggression may have lasting effects. A new study shows teens who lash out more often may reach adulthood with bodies that age faster.

When teenagers become more irritable, rude or aggressive, many parents instinctively look at the nearest screen. Is it the phone? The violent video games? Social media drama? While digital media can ...

Aggression and self-harm often co-occur in individuals with a history of early-life trauma-a connection that has largely been documented by self-reporting in research and clinical settings. Adding to ...