The North American Neuromodulation Society (NANS), formerly the American Neuromodulation Society (ANS), was formed in 1994 through the efforts of physicians dedicated to patient care through the field of neuromodulation. The society is a chapter of the International Neuromodulation Society (INS). NANS is a non-profit organization devoted to the advancement of the field of neuromodulation within the United States. NANS is devoted to the pursuit of excellence in the application of all neuromodulation therapies. Neuromodulation is often defined as the application of targeted electrical, chemical and biological technologies to the nervous system in order to improve function and quality of life.