SubjectsHuman Body FactsFactsIP FactoidsWeird Facts There is a syndrome that tricks people into thinking they are immortal. By IP Factly - Apr 10, 2015 0 3 Share on Facebook Tweet on Twitter cotard delusion by hunnnterrr cc2.0 The most common symptom of Cotard’s syndrome is a feeling that one is already dead. Because of this, the patient feels as if he or she can no longer die, which unfortunately, often leads to unintentional suicide.