Social media is the focus of the US surgeon general's conversation with JAMA Editor in Chief Kirsten Bibbins-Domingo, PhD, MD, MAS. She interviews Vivek H. Murthy, MD, MBA, to discuss the dangers of social media on youth mental health, highlighting its contribution to the epidemic of loneliness. This is part 2 of a 2-part Q&A. Related Content:

• US Surgeon General Vivek Murthy: To Protect Adolescents, Social Media Needs Warning Labels
• Social Media Needs Warning Labels: Q&A With Surgeon General Vivek H. Murthy, MD, MBA
• US Surgeon General Vivek Murthy: Firearm Violence Is a Public Health Crisis
• Q&A With Surgeon General Vivek H. Murthy, MD, MBA: Gun Violence Is a Public Health Crisis
• Q&A With Surgeon General Vivek H. Murthy, MD, MBA: Gun Violence Is a Public Health Crisis