Read this book.
I cannot recommend this book strongly enough. Aside from the fact that Atul Gawande's writing is wonderful and engaging, the topic of end-of-life care is too important not to read about it, especially when you're young enough to be able to do something about it. Saving for retirement is not enough. Thinking about this and preparing can't be stressed enough. Having read it, I am no-way-no-how going to move my mom or my dad or Eric or anyone elder and well-established whom I need to care for, from their homes when they are older.
I can seriously hope that if I'm faced with "do this procedure, get maybe 3 more years of questionable-quality life" vs "don't do this procedure, get maybe 1 more year of quality life" I have the strength and wisdom to choose the latter.
Read. This. Book. I mean it. I'll buy a copy, I mean it so much.