Everyone has heard of nature's "biological clocks," the phenomenon of periodic activity in plants, animals and humans. But what does chronobiology have to do with modern medicine?This book presents in a concise but comprehensive fashion the basic principles of chronobiology and their application to clinical medicine.The chapters are written by specialists in the field; they summarize the physiology, pathophysiology and pathology of the human time structure and outline the application of chronobiologic principles and techniques for diagnosis and treatment.