Immune system or the use of immunosuppressive medication. In contrast, autoimmunity results from a hyperactive immune system attacking normal tissues as if they were foreign organisms. Common autoimmune diseases include Hashimoto's thyroiditis, rheumatoid arthritis, diabetes mellitus type 1, and systemic lupus erythematosus. Immunology covers the study of all aspects of the immune system. Immunology is a science that examines the structure and function of the immune system. It originates from medicine and early studies on the causes of immunity to disease. The earliest known reference to immunity was during the plague of Athens in 430 BC. Thucydides noted that people who had
Adiposopathy (10) steroid metabolism; (11) blood clotting (hemostasis); (12) element binding; (13) and immune response (described below). When fat cells and fat tissue remain healthy during fat weight gain, patients may avoid metabolic ill health. However, if enlargement of fat cells and fat tissue causes them to become "sick", then important fat tissue functions are disrupted, and deranged responses contribute to metabolic disease. When excessive body weight leads to adiposopathy, this represents a hormone or endocrine disease. Additionally, fat cells and fat tissue also produce many different types of immune factors. Inflammation is a contributing cause to metabolic disease, and the