Describe dying - no metaphors allowed

First goes color.  The skin is always the first to start failing when someone is about to die.  Then movement gets harder, hurting and hurting until they have to stay in bed for the rest of their days.  Breathing is also slowing at this point, now forcing the person to sleep with some type of machine or monitor.  Sometimes, if they’re really unlucky, coherent speech will also be lost.  It gets to a point where they start communicating through groans or slurs.  And then they just… fade off.  No warning, no dramatic convenience, just and end.  What happens from there, nobody knows.