A British man suffered from a rare condition that made him think that he is no longer alive for the last nine years.
The man, who has been identified only as Graham, suffered from a condition known as Cotard's Syndrome, which is also called 'Walking Corpse Syndrome'.
When the doctors revealed their diagnosis to the man, he did not believe them and insisted he was dead. Graham suffered from severe depression nine years ago and even attempted suicide by immersing himself in a bath with the water in contact with an electric appliance.
He underwent months of therapy and has now managed to overcome his syndrome.