Listen to 'mobile corpses' telling stories

A British patient recorded a horrifying time when he had "mobile body" syndrome and how he lived in the graveyard to "be near the most death".

According to the man who claimed to be Graham, one day 9 years ago, he woke up and insisted that he was no longer alive while still breathing. Doctors diagnosed him with Cotard syndrome , or " mobile coronary syndrome", because it made people believe they had turned into zombies.

However, Graham did not believe the doctors. He asserted, his brain was dead.

The strange disease that appeared after depression made Graham insist that he died despite still breathing.(Artwork: Corbis)

The strange disease appeared after Graham, who was severely depressed, tried to commit suicide by shocking himself in the bath. Eight months later, he told doctors that his brain was dead or at least missing.

Next, Graham no longer liked smoking, stopped talking and refused to eat because "it became meaningless when I died".

In a final attempt, people took him to meet two neurologists Adam Zeman of Exeter University (England) and Steven Laureys from Liège University (Belgium). At this time, the family always had to supervise Graham because his illness was so severe that he lost all sense of smell, taste, silence and no eating.

Brain scan results revealed, the level of activity of some areas of Graham's brain is extremely low and slow to the same level in people living in plants.

Only through drug treatment and psychotherapy for months, did Graham overcome his illness and start living normally again.

According to experts, Cotard syndrome is among the most rare diseases in the world and is thought to "attack" only a few hundred people at the same time. This "mobile body" syndrome is linked to depression and occurs in many different forms, including those who believe their limbs are no longer active or completely paralyzed.