In this episode of Fresh Air, Caroline Crampton delves into her book 'A Body Made of Glass' to discuss the evolving understanding of hypochondria, now termed illness anxiety disorder. She emphasizes the psychological burdens of health anxieties and the differentiation between care-seeking and care-avoidant behaviors, highlighting the need for empathy. The discussion connects hypochondria to PTSD, explores therapeutic methods like CBT and EMDR, and reflects on personal experiences with health trauma. Additionally, critic John Powers reviews two spy series, 'Black Doves' and 'The Agency', focusing on contemporary themes in espionage and identity.