Brief, factual summary in Slovak: Research published in JAMA focuses on the prevalence of obesity in adults in the US - trends, forecasts, and differences by race and ethnicity from 1990 to 2022 and projected developments to 2035. Additional research examines the use of artificial intelligence (AI) in contributions to JAMA network medical journals. The editors provide guidance for authors, reviewers, and editors on the use of AI, language models, and chatbots in medical research. The editors emphasize the need for continued guidance in the use of AI in research. Other articles cover various medical topics such as atrial fibrillation, acute kidney injury, and dialysis. The newsletter also contains information about signing up for the JAMA network's e-mail notifications.