The Theory of Endobiogeny Volume 1: Global Systems Thinking and Biological Modeling for Clinical Medicine offers researchers and clinicians a detailed introduction to the theory of Endobiogeny. The book presents a new approach to medicine that is at once scientific and humanistic, quantitative, and qualitative. The philosophical and experimental basis of a global complex systems approach to physiology is presented along with a mathematical approach to modeling the dynamism of the terrain. The importance of the history and physical examination are renewed as a source of “big data” readily available to clinicians for greater insight into the patient’s state. Expansion of the therapeutic compendium is proposed based on a rational, clinical approach correlated to mathematical indicators of the physiologic state. What is proposed in this work is a fundamental shift in scientific thinking with a resulting expansion of the boundaries of clinical medicine for the 21st century and beyond.