A complete guide to understanding the mysterious and often difficult-to-pinpoint disorders of the immune system--and finding the keys to diagnosis, treatment, and recovery.An estimated fifty million people suffer from symptoms including fatigue, joint pains, depression, or heart palpitations -- signs that the immune system has turned on itself, causing conditions such as thyroid disease, hepatitis, or multiple sclerosis. And while doctors may prescribe treatments to relieve these surface ailments, when asked about the life-long health implications of an autoimmune condition, they often just sh... View More...