Information molecules, such as Cortico-Releasing Factor (CRF), are ancient and widely distributed across diverse organs, playing various regulatory roles. CRF has been associated with a range of human conditions, including fear and anxiety, social contact, and most recently, addiction – in particular the euphoric feelings associated with alcohol consumption. Since its original discovery, research has unearthed that the role of this molecule is much broader than first thought. The scientific community now knows that CRF is a dynamic and diversely widespread peptide hormone that plays many roles and has many functions, in addition to its role as a releasing factor in the brain. This book explores the role of CRF, examining the relationship between location and function. It considers recurrent features that are linked to CRF - movement and change. CRF expression in regions of the brain is tied to paying attention to novel events and invoking movement in response to those events. Indeed, CRF provokes simple organized rhythmic behavior and can be mobilized under diverse conditions, including adversity. Examining the evolutionary origins of CRH, its neural functions, and its role in a variety of human characteristics and social behaviors, this book provides unique insights into CRF, and will be of interest to students and researchers in Neuroscience, Psychology, and Biology.