In this Fresh Air interview, Caroline Crampton, author of "A Body Made of Glass," delves into the complexities of hypochondria, drawing from her own experiences and historical insights. Having faced cancer twice, Crampton shares her thoughts on illness anxiety disorder and somatic symptom disorder, highlighting the fine line between being a responsible patient and succumbing to excessive worry. She discusses the challenges posed by online symptom-checking and reflects on her journey with EMDR and CBT therapies, stressing the need to identify and manage triggers while achieving a balance between vigilance and self-care. The conversation also touches on two new spy series, "Black Doves" and "The Agency," examining their differing styles and common themes of identity and morality.