Remembered :D

Yay! My brain's just about working and I've remembered what else I was going to ask. I'd really like to know your opinion on this since I don't really know where I should stand. In uni on Wednesday we had a lecture on when a life support should be turned off. As you can imagine lots of things arose - one of course being euthanasia. Did you know that there's two types of euthanasia? One is called active euthanasia which is where you give something to a patient/person to quicken their death and the other is called passive euthanasia which is where a treatment is withdrawn (ventilator) or a treatment is not given (antibiotics for a chest infection when the patient is dying of terminal cancer). Main questions were thrown about in class and I was very patient and quiet! (Yes, I know, something I unusaual for me! :p) Anyway, the main issue revolved around where life is sacred which then lead to the question of when life is no longer life e.g persistent vegatative state (PVS). The main thing that kept going through my head though was the fact I remembered that my mum had asked that if she ever ended up in PVS that she wants the treatment to stop since she didn't see this as life. what do people think? Can there be a point when life is no longer life? If so, when is life not life?