“Epigenetic marks are remarkably durable, which is why you don’t wake up to find that your brain has started to turn into a pancreas.
… Nothing ruins your day like finding that your brain has turned into a pancreas.”

Carl Zimmer, “The Brain”, Discover Magazine June 2010 (via fyrmayj)

Although you wouldn’t realize that your brain turned into a pancreas because you know… because you died.