Teens

• A new study from Project Viva shows that replacing 30 minutes of daily sitting time with exercise significantly lowers type 2 diabetes risk in teens aged around 13. • Researchers analyzed data from over 800 adolescents in Eastern Massachusetts who wore movement trackers and kept sleep logs for up to 10 days. • Results exceeded expectations, highlighting small lifestyle changes' strong protective effects against future diabetes in youth.

• A new study finds that exposure to PFAS (per- and polyfluoroalkyl substances)—chemicals used in non-stick coatings and water-resistant products—is linked to low bone density in teenagers. • The research, announced by the Endocrine Society, involved collaboration between the CDC, University of Cincinnati College of Medicine, University of Pennsylvania, Simon Fraser University, and George Washington University. • The finding adds to growing evidence that PFAS contamination poses significant health risks, particularly during critical periods of skeletal development in adolescence.

• UPMC, a major Pittsburgh health system, stopped providing gender care services to patients under age 19 approximately nine months ago, leaving local transgender teens struggling to find alternative care options. • The policy change has forced young patients like Moss Brinzer to scramble for medical services, creating significant gaps in access to gender-affirming healthcare for minors in the region. • The decision reflects broader tensions in U.S. healthcare around gender medicine for adolescents, with major health systems reassessing their policies amid ongoing national debate.