By Dr. Emmanuel Mignot, director of the Stanford Center for Sleep Sciences and Medicine.

Dr. Mignot, whose research is funded in part by Wake Up Narcolepsy, discusses Autosomal Dominant Cerebellar Ataxia, Deafness and Narcolepsy, or ADCA-DN. This terrible disease is characterized by narcolepsy evolving into neuropsychiatric problems and dementia.