But what is "life support" in a hospital? Do providing food and water count? Would it be ok to also remove those forms of life support to allow one to finally d

But what is "life support" in a hospital? Do providing food and water count? Would it be ok to also remove those forms of life support to allow one to finally die if it's their wish? Stop providing heat to their room? If so, why so? Why is that form of induced death better or worse than administering a drug? If not, why not? It's clearly a form of hospital administered life support just like a breathing machine. I don't have the answer, but it's not a cut and dry question. Like most things around life and conscienceness it's complicated.