Utter carp you are talking.
“Body Shutting Down”.
What nonsense.
It’s just excuse and rationalization.
Perhaps you are ignorant and believe the pseudo medical swill you are spewing. I hope that’s the case at least.
It is clear that you have no medical training and little idea of how a human (or any other species) body functions.
In cases of extreme pathology, organs can and do shut down. Feeding tubes do no good when the digestive system doesn’t work. IV fluids do not help a patient whose kidneys stopped functioning.
You have probably seen those horrible pictures, usually out of Africa, of starving children, whose bodies are little more than skeletons. Those children reach a point where their organs no longer function—where even if you try to feed them, they cannot process the food. There really is a point in starvation at which the patient cannot be saved.
I watched my grandfather starve to death. It was his choice. He was not sick, but he did not want to live any more after his leg was amputated and no one could get him to eat. I remember being on the death watch in the hospital, and the nurse came into the waiting room to tell us that he did not have much longer, since all his organs were shutting down. He lasted a few hours in that condition.
The thing is, organ shut-down is a normal part of the dying process for many people. I would hope you realize that if you are ever in the position of keeping a loved one company while he or she dies. Because if you insist on the use of tubes, IVs, and whatnot, you will make their passing torturous instead of peaceful like it should be.