The Hypothalamus is an important area of the brain for understanding a variety of neurological disorders. This volume summarizes for readers the anatomy and physiology of the middle and posterior hypothalamus, to better understand pathology and treatment of hypothalamus related disorders. In addition to anatomy and physiology in humans, cytoarchitecture and chemoarchitecture in rodents is provided. The volume explores the role of the hypothalamus in disorders of eating, sleeping, anxiety, and mood, as well as its role in sexual behavior and gender identity. Coverage includes how Parkinson’s, Alzheimer’s and other neurological disorders relate to the hypothalamus.