Autoimmune diseases, such as multiple sclerosis (MS), inflammatory bowel disease (IBD), and rheumatoid arthritis (RA), affect ...

Low levels of a key nutrient found in sunlight and some foods may be linked to anxiety, bone disease and some forms of cancer ...

Fibromyalgia is a chronic syndrome that can cause widespread pain in the body. Learn more about the condition, including its symptoms, causes, and treatments.