An expert cohort of clinicians, researchers, and high-altitude specialists bring together the latest evidence-based insights into the physiology, pathophysiology, prevention, and management of High-Altitude Illnesses (HAI). This comprehensive book bridges foundational science with practical clinical strategies, offering readers a lucid synthesis of altitude-related syndromes — from Acute Mountain Sickness (AMS), High-Altitude Pulmonary Edema (HAPE), and High Altitude Cerebral Edema (HACE) to chronic adaptation and performance optimization. Whether you are a physician deployed in high terrain, a trainee in internal or emergency medicine, a researcher exploring hypoxia biology, or an expedition medic, this book provides an indispensable resource with clear algorithms, detailed tables, and actionable guidance tailored to real-world practice. Written with academic rigor and clinical relevance, A comprehensive guide on High Altitude Medicine is the definitive reference for understanding human health at extremes of elevation.