When Marya Hornbacher published her first book, Wasted: A Memoir of Anorexia and Bulimia, she did not yet have the piece of shattering knowledge that would finally make sense of the chaos of her life. At age twenty-four, Hornbacher was diagnosed with Type I rapid-cycle bipolar, the most severe form of bipolar disorder.

In Madness, Hornbacher tells her new story. Through scenes of astonishing visceral and emotional power, she takes us inside her own desperate attempts to counteract violently careening mood swings by self-starvation, substance abuse, numbing sex, and self-mutilation. How Hornbacher fights her way up from a madness that all but destroys her, and what it is like to live in a difficult and sometimes beautiful life and marriage—where bipolar always beckons—is at the center of this brave and heart-stopping memoir.

Millions of people in America today are struggling with a variety of disorders that may disguise their bipolar disease. Marya Hornbacher's fiercely self-aware portrait revolutionizes our understanding of this all-too-common, all-too-misunderstood disorder.