Millions of people are suffering from chronic illnesses that, unbeknownst to them, are the result of exposure to environmental toxins and infectious agents such as mold and Borrelia, which causes Lyme disease. Millions. Because the symptoms of these illnesses are so varied and unusual, many of these individuals have sought medical care only to be dismissed, as if what they are experiencing is "in their head." Many (if not most) have tried to tough it out and continue to function without hope of improvement. Unfortunately, their illnesses are very real. Toxic is a book of hope for these individuals, their loved ones, and the physicians who provide their care. Over many years of helping thousands of patients recover their health (even after their previous doctors had given up on them), Dr. Neil Nathan has come to understand some of the most common causes for these debilitating illnesses, which allows for the utilization of more precise and effective forms of treatment.