A friend recently told me that if you die in a lucid dream and don't wake up, you die in real life. Her reasoning was that the brain can't cope with it and shuts the body down. I'm sceptical of this. I haven't seen any evidence or found any proof (as yet). What do you think? I'mm confused.

(If you have any information please share! If there already is a topic for this direct me to it! I did search, but found nothing that deals with dying in real life.)