Book excerpt: The principles of endocrinology and metabolism clearly and simply explained on a system-by-system, organ-by-organ basis ESSENTIAL FOR USMLE® STEP 1 REVIEW! A Doody’s Core Title for 2022! Applauded by medical students for its clarity, comprehensiveness, and portability, Endocrine Physiology, Fifth Edition delivers unmatched coverage of the fundamental concepts of hormone biological actions. These concepts provide a solid foundation for first-and-second year medical students to understand the physiologic mechanisms involved in neuroendocrine regulation of organ function. With its emphasis on must-know principles, Endocrine Physiology is essential for residents and fellows, and is the single-best endocrine review available for the USMLE® Step 1. Here’s why this is essential for USMLE® Step 1 review: Informative first chapter describes the organization of the endocrine system, as well as general concepts of hormone production and release, transport and metabolic rate, and cellular mechanisms of action Boxed case studies help you apply principles to real-world clinical situations Each chapter includes bulleted Objectives, Key Concepts, Study Questions, Suggested Readings, and diagrams encapsulating key concepts If you’ve been looking for a student-tested, basic yet comprehensive review of endocrinology and metabolism, your search ends here.