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9 Common Autoimmune Diseases

  Autoimmune disease is where the natural immune system attacks the body. Usually, the human immune system helps guard against bacteria, viruses, toxins, cancer cells, pathogens, disease-carrying organisms, or any non-self (foreign invaders). The immune system is complex, vast, and interconnected with multiple organs, cells, and proteins to shield from any illness. But when the immune system malfunctions, it will attack the healthy cells, organs, and tissue. These attacks can weaken any bodily functions, and in some instances, they can be life-threatening. Scientists know nearly 80 immune diseases, including lupus, inflammatory bowel disease, psoriatic arthritis, Addison's disease, Graves' disease, multiple sclerosis, rheumatoid arthritis, pernicious anemia, and type 1 diabetes; other conditions are rare. Patients with uncommon immune diseases may suffer for years before a proper diagnosis. While some diseases have no cure, some require a lengthy treatment to reduce symptoms. F