This is a very important point, whichever choice you make in advance. My father was in a similar situation after a large stroke, a decline into pneumonia, and w

This is a very important point, whichever choice you make in advance. My father was in a similar situation after a large stroke, a decline into pneumonia, and was clearly not going to survive. He'd made his wishes clear in advance so we felt untroubled by this course of action. The fact that he essentially starved and dehydrated to death was what we knew he wanted given the other options. He was under constant medical supervision to make sure it was as painless as possible, rather than struggling on through what he would have thought was a pointlessly drawn-out and painful death. Make sure the people close to you know what you want. You may not get a chance to express your wishes at the time, and taking the burden of that choice off the people you leave behind will be greatly appreciated, however awkward and difficult the initial conversation is.