MEANING : (n.) an intelligent person with a non-social obsession (such as computer programming) that renders him/her annoying or unattractive.
Celiac disease is believed to be an autoimmune disorder. While genetics appear to play a role in causing it, some people at risk for celiac disease will not develop it until something triggers their immune system, such as a viral infection or severe emotional stress. An Introduction to Celiac Disease and Its Causes.
Celiac disease is a genetic disorder affecting children and adults. People with celiac disease are unable to eat foods that contain gluten, which is found in wheat and other grains. In people with celiac disease, gluten sets off an autoimmune reaction that causes the destruction of the villi in the small intestine.