An Illinois physician who attacked naturopathy and other forms of alternative medicine. He authored Fads and Quackery in Healing (1932). The case of American Socialist Party leader and presidential candidate Eugene V. Debs concerned Fishbein greatly. In poor health after completing a prison sentence, Debs went to the Lindlahr Naturopathic Sanatorium in Elmhurst, Illinois, for a rest. While there, he became unconscious; two days later, Fishbein was called by Debs’s brother to check on his condition and found Debs to be suffering from an undiagnosed brain disturbance. The clinic’s subsequent treatment proved inadequate; Debs died soon afterwards. Fishbein was strongly of the opinion that if Debs had received conventional treatment from the outset, he would probably have survived in short, that naturopathy had done him more harm than good.