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.
However, a large minority of the population (some 40%) actually carries one or both of those genes, so genetics isn't the only factor in play here. To develop celiac disease, you must be eating gluten. When you have celiac disease, gluten spurs your immune system to damage your small intestine. Still, gluten is extremely common in Western-style diets (most people eat glutenâand frequently lots of itâseveral times each day), and still only about 1% of people develop celiac disease.