Cotard’s Syndrome is one of the strangest things the human brain can do to a person. Not strange in a quirky, interesting-fact way — strange in the way that makes you genuinely reconsider what it means to have a self at all. People with this condition believe, with complete sincerity, that they are dead. That their organs have rotted away. That they don’t exist. And no amount of rational argument, no mirror, no heartbeat felt beneath the ribs, can convince them otherwise. It sounds like something from a horror story. It is, in fact, a neurological and psychiatric reality — and what it reveals about how the brain constructs the experience of being alive is more unsettling than the condition itself. What Cotard’s Syndrome Actually Is Cotard’s Syndrome — also called Cotard’s delusion or the walking corpse syndrome — was first described in 1880 by French neurologist Jules Cotard. He…