An article in JAMA looks at the growing trend of sleep deprivation among US teens, focusing on at-risk groups. Also included is an editorial note that emphasizes the need for systemic changes in this area. The next article presents an overview of chronic, non-infectious diarrhea and addresses the question of when and how to investigate conditions beyond IBS-D (the diarrheal form of irritable bowel syndrome). There is also a podcast dedicated to the diagnosis and treatment of chronic non-infectious diarrhea.