Anna Lembke, MD is the medical director of Stanford Addiction Medicine, program director for the Stanford Addiction Medicine Fellowship, and the chief of the Stanford Addiction Medicine Dual Diagnosis Clinic. As a clinician scholar, she has published more than a hundred peer-reviewed papers, book chapters, and commentaries that have been featured in prestigious outlets such as The New England Journal of Medicine. She joins the show to talk to us about her newest book, 'Dopamine Nation: Finding Balance in the Age of Indulgence' which is about the dopamine system and addiction.