There is a good chance you will find some degree of autoimmunity in any random person off the street - one out of five Americans currently suffer from autoimmune disease.  Their immune system loses the ability to determine self tissues from non-self tissues and launch deliberate attacks against them.  This can come in many forms such as diabetes, multiple sclerosis, or rheumatoid arthritis, to name a few. Some simple tests can help you stop or slow the progression.  If you have concerns about your status or have a family history of autoimmune disease, this article is for you!