Americans are living in a time of unprecedented access to high-reward, high-dopamine stimuli: drugs, food, news, gambling, shopping, gaming, texting, sexting, Facebooking, tweeting and more. Anna Lembke, MD, psychiatrist, Medical Director of Stanford University Addiction Medicine, Chief of the Stanford Addiction Medicine Dual Diagnosis Clinic, author of âDopamine Nation: Finding Balance in The Age of Indulgenceâ outlines new scientific discoveries that explain why the relentless pursuit of pleasure leads to pain, and what to do about it.