The medical world can keep a "dead corpse" legally alive for years. Termination of life can be extended to the extreme of when it is no longer beneficial for any or all parties involved.
There is a considerable number of people from large appetite young male Bethelites to older overweight "Pillars in the Congregation/District" Elders that are adrenaline junkies who love the thrush of hearing their introduction heard from the stage that benefits in continuing the lie.