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.
When they remove gluten from their diet, their body starts to repair itself, giving a false negative for the tests. Celiac disease can cause a multitude of problems. The major ones come from malabsorption of nutrients. This can lead to osteoporosis, anemia, and stunted growth in children.