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.
Most people with celiac disease have one or more symptoms. However, some people with the disease may not have symptoms or feel sick. Sometimes health issues such as surgery, a pregnancy, childbirth, bacterial gastroenteritis, a viral infection, or severe mental stress can trigger celiac disease symptoms.