Similar to a DNR order. Do not resuscitate. If you fail and attempt or are in an accident and end up on a ventilator, life support, feeding tube, etc and cannot communicate then they will do everything they can to keep you alive. You could end up on a breathing machine and things I just mentioned indefinitely for years. If you have a DNR order and advanced care directive in place then they have to honor your wishes which would be to die naturally without being on machine that will prolong your life and suffering. Make sense?
You have to have 2 people to sign it who could speak for you. Idk if they would still honor your wishes with your signature if the person who is speaking for you disagrees. Or they have too idk. It would be a horrible situation to be in and could be prevented by setting this up. It also has to be notarized I think which sucks. I'm going to look into it. If I ctb and didn't fail it wouldn't matter but it still applys to accidents, old age scenarios, dementia,and anything that will put you in hospital and steal your freedom. Then you are trapped and can't get out. So I guess it's best to have and be prepared unless you want to be potentially trapped.
I remember and older case of a guy who went out into the woods behind his house and tried to hang himself. He was found by police and saved. He had brain damage and couldnt move etc. He could only blink, and that's how he would respond. His mom kept him on life support for a long time. I don't remember how long it was but it was like a year or 2. They asked him if he still wanted to die? Blink once for yes and twice for no. He blinked once. He finally died.