A teen’s mental health, as well as their body mass index (BMI) and screen time, are significantly associated with their sleep quality, according to a new paper published June 10, 2026 in the open access journal PLOS One by Jianying Li of Shanxi University, China, and colleagues. The study also found that girls and adolescents living in more rural areas tend to have lower sleep quality.

Carnegie Mellon University and University of California, San Francisco researchers found that childhood trauma, poverty, social isolation and other adverse life experiences are associated with brain changes linked to schizophrenia-spectrum disorders — findings that could help researchers identify people at risk earlier and develop interventions before severe symptoms emerge.