These everyday lapses are common and are most often a normal part of life, or a sign we might be tired or stressed. But for some people, they could be early signs of a rare condition called autoimmune ...

Anxiety is an overwhelming worry or fear. Besides its mental and emotional effects, anxiety can also cause physical symptoms, including chest pain. Anxiety causes about 30-40% of emergency department ...

Dear J.M.: Encephalitis means inflammation of the brain, which is a rare condition. It can be caused by infections ...

Herpes simplex virus (HSV) encephalitis, caused by HSV types 1 and 2, is the most common sporadic viral encephalitis worldwide, with an annual incidence of around 2·2–4·6 per million people.1 Before ...