Autoimmunity is a broad field of research that focuses on understanding and studying the immune system's maladaptive response to self-antigens, leading to the development of autoimmune diseases. In autoimmune diseases, the immune system mistakenly attacks healthy cells and tissues in the body, causing inflammation, tissue damage, and a range of symptoms. Researchers in the field of autoimmunity study the underlying mechanisms, genetic and environmental factors, and potential treatments for autoimmune diseases such as rheumatoid arthritis, lupus, type 1 diabetes, and multiple sclerosis. The goal of this research is to better understand and effectively treat autoimmune diseases, which affect millions of people worldwide.