In this culmination of his life’s work, Peter A. Levine draws on his broad experience as a clinician, a student of comparative brain research, a stress scientist and a keen observer of the naturalistic animal world to explain the nature and transformation of trauma in the body, brain and psyche. is based on the idea that trauma is neither a disease nor a disorder, but rather an injury caused by fright, helplessness and loss that can be healed by engaging our innate capacity to self-regulate high states of arousal and intense emotions. Enriched with a coherent theoretical framework and compelling case examples, the book elegantly blends the latest findings in biology, neuroscience and body-oriented psychotherapy to show that when we bring together animal instinct and reason, we can become more whole human beings.