During Dr. Merchant’s 42-year medical career, our beliefs about the root causes of chronic disease evolved. Dr. Merchant believed patients should get better or at least improve and worked toward that goal, by focusing on diagnosing what he could and treating what he could diagnose. “The Origin of Disease: The War Within” evolved over many years, as the successful, unexpected and even miraculous outcomes shaped his beliefs and theory.

Dr. Merchant treated many chronic diseases based on the diagnosis of immortal pathogens and parasites; and saw improvement in patients with diseases of unknown origin and patients deemed hopeless. When he treated patients for immortal pathogens that were the root cause of their chronic diseases, patients were able to discontinue medications, improve, and in some cases recover and go on to live many more years with a good quality of life.