Health is the ability of a biological system to acquire, convert, allocate, distribute, and utilize energy withmaximum efficiency. Health is a fundamental human right. This book is designed to provide a lucidtreatment of the diseases related to health. The text presents an integrated picture of the severalapproaches and captures the central themes and concerns of the subject. It is structured to provide acomplete and timely treatment of the subject. This book is presented in a user-friendly mode, aiming tomeet the needs of not only the students and teachers but also professionals of this field. The book fullymeets the requirements of patient safety and medical liability. The text is very well made withphotographs and tables making the matter very clear without any ambiguity, covering all specialities ofthis field. It consists of contributions made by international experts. Scientists and students activelyengaged in this field will find this book full of crucial and unexplored concepts. This book will prove avaluable reference for practitioners, specialists, consultants and students.