Paul Bergner is the Director of the North American Institute of Medical Herbalism. He has studied and practiced natural medicine since 1973, with formal training in naturopathy, medical herbalism, clinical nutrition, traditional Chinese medicine, Ayurvedic medicine, flower essences, yoga therapy, and bodywork, including undergraduate studies in pre-medicine and psychology, and 50 semester hours of doctoral level medical studies at the National University of Naturopathic Medicine. He has published the Medical Herbalism journal since 1989, and has written seven books on medical herbalism, nutrition, Chinese medicine, ethnobotany, and naturopathic medicine. He has also served as editor for the Clinical Nutrition Update and Naturopathic Physician periodicals. Paul has taught clinical herbalism and clinical nutrition since 1989 and has mentored more than 400 students through eight-month clinical residencies at four different teaching clinics since 1996. He is currently on the clinical faculties of the Colorado School of Clinical Herbalism in Boulder and the Acorn School of Herbal Medicine in California. He has taught nutrition academically at both the undergraduate university and master's degree level. He lectures on the topics of medical herbalism and clinical nutrition nationally and internationally.