Why does it happen? Sometimes your immune system gets tricked. A portion of the bacteria or virus may look just a little too similar to something else in your body-say, your heart cells. So your immune system cells may kill the bacteria or virus, but then also mistakenly begin attacking and destroying your own heart cells-which you obviously dearly need.
I'm just using your heart cells as an example; many organs and tissues are vulnerable to an autoimmune response-which is a mistaken assault by the very defense system that was designed to protect them. Autoimmune diseases include lupus, inflammatory bowel syndrome, and rheumatoid arthritis. In the worst cases, autoimmune diseases can lead to organ failure or irreversible tissue damage.
Find out more about this book:YOU: The Owner's Manual, Updated and Expanded Edition: An Insider's Guide to the Body that Will Make You Healthier and Younger