Word, brother.
Minus that mortal wound that caused their first death to begin with, I assume and hope.I 'member the plot point of one of the TV show's episodes, featuring an immortal child, being that immortals become immortal after their first death, and then they stay the way they are foreveeer.
Though that still raises the questions of how your new default body looks like if your first death involves burning alive...
Oh, it's just a procedure that removes all of your internal organs. How much does the brain factor into the "You only die if you lose your head" business, anyways?But in another episode there was an Egyptian kween that comes out of her sarcophagus perfectly fine, so unless she died, became immortal and was pretending to be dead a second time while being mummified, the whole IP is dumb.