Functional Diagnosis is a book written by Max Kahn in 1920 that provides a comprehensive guide to diagnosing diseases and illnesses through functional tests. The book covers a wide range of topics, including the principles of functional diagnosis, the anatomy and physiology of the human body, and the different techniques and tools used in functional testing. Kahn's approach to diagnosis is based on the idea that every disease or illness has a functional component that can be measured and evaluated through specific tests. He explains how to conduct these tests and interpret the results, providing detailed instructions and illustrations throughout the book. The book also includes chapters on specific diseases and conditions, such as cardiovascular disease, respiratory disorders, and gastrointestinal disorders. Kahn provides insights into the functional aspects of these conditions and how they can be diagnosed using his methods. Overall, Functional Diagnosis is a valuable resource for medical professionals and students interested in functional testing and diagnosis. It offers a unique perspective on diagnosing diseases and illnesses and provides practical advice and techniques for conducting functional tests.With Foreword By William J. Gies.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.