Daniel Singer hadn't eaten in a week. Hunched over with his head in his hands, he'd sit in his "safe" chair for hours, doing nothing but shaking, mumbling and moaning; he was in the throes of severe obsessive-compulsive disorder. Dan went from seven therapists to ten medications to a nine week stay at a world renowned residential treatment program. His parents worried he'd never again be able to function in society, or even worse, survive. Overcoming...