No, this isn’t a disorder for those of us who have woken up feeling “dead tired.” Walking Corpse Syndrome is a belief held by a person that they are dead, or that parts of their body no longer exist, and some die from starvation because they feel they no longer have to eat. It has been linked to depression as well as to those who are chronically deprived of sleep or suffer drug psychosis. This distorted reality is caused by a malfunction in an area of the brain called the fusiform gyrus.