This research investigates whether weight loss from the GLP-1 drug semaglutide includes loss of muscle mass. Using an obesity mouse model and direct muscle measurements, the study found significant muscle loss in females but not males. The findings highlight important sex differences and the need to evaluate body composition, not just weight loss.

This study examines whether opening new medical residency programs improves health outcomes. Comparing counties with and without new residency programs, the research found that mortality rates fall by 4.8% where programs are introduced. However, similar benefits were not observed in rural areas, highlighting the importance of healthcare infrastructure and training location.