A mental illness that makes the patients believe that they are dead. RELATED INFO: \rbr\rbrSubscribe now for more! Broadcast on 021216 A severe motorbike accident left Warren McKinley with an incredibly rare psychological .\rbr\rbrZombies can be entertaining, but then again,there people believe that they are literally among the walking dead (Im absent at work today coz i hVe a fever)\rbr\rbrA British man believed he was no longer alive. A man who goes by the name Graham woke up 9 years ago, believing that he had died. The condition surfaced .