What Is An Autoimmune Diseases?

The body has an immune system, it is supposed to protect us from disease and infection. When you have an autoimmune disease, your immune system is attacking itself by mistake, then you can get sick. Connective tissue in your body can be affected by autoimmune disease. Connective tissue, is tissue that binds together body tissues and organs. The disease also can affect other parts of your body, like your nerves, muscles, endocrine system (system that directs your body’s hormones and other chemicals), and digestive system.