QUOTE(oolongcha @ Jul 22 2006, 11:23 AM)

I've not been diagnosed with anything and am fine, yet I've got a living will - you can write them at any time. I think they're a great idea. I don't want to get involved in an accident and some over eager doctor persuade my next of kin that it's a 'good idea' to keep me on life support while in a coma for an indefinite period of time, or something of that sort.
It's better to right one before you get diagnosed with something that's going to kill you, because at least it avoids the charge that you're somehow 'not thinking rationally'. If you change your mind at any time, they're easily revoked.
I haven't written one on this subject, I have the normal will in place, but my family are all aware that I wouldn't want to be kept going if in a vegative state or terminal and I have donor cards. But perhaps it is a good idea to have it in writing as well, as having seen the fall out that happens between families over a normal will or lack of one in place, the more that is in writing the better, including how I would like to be treated in a severe medical situation.