Exo bodies are made to simulate human bodies in many ways. [i]Many ways.[/i] Otherwise, the brain would consider the body dead and convince itself of this. (This is an actual thing in real life! Cotard Delusion!) This combined with the Exomind processing would somehow make you think that you, and everyone and everything around you, was dead. Imagine believing you live in a dead universe where you are also dead, all because you don't have anything to get up.