NEJM This Week — August 20, 2026

This week, we feature new research on acute respiratory failure, wheezing in childhood, lung cancer, and obesity. We review myeloproliferative neoplasms and follow a diagnostic case of a patient with myasthenia gravis who developed dyspnea and weakness. Perspectives explore medical marijuana research, AI in clinical care, sexual and gender minority health research, and the Perspectives Editor saying goodbye.