Suppose, for example, that a person takes an overdose of some kind. This action incapacitates the person, but does not kill them. The nature of the overdose results in organ failure. The liver, for example. Without treatment, maybe even a transplant, the person will die. What are the laws (for me, it's the UK), and ethics if the person chooses to refuse further treatment? That is, in doing so, would surely die. Can the general medical opinion to save live over-ride the individuals decision to die? Could the act of taking an overdose, with the express intention to die, be taken as a sign of irrational thought, and thus further wishes to refuse treatment be seen as irrational, and thus be ignored by medical opinion? Does the term "Do Not Resuscitate" carry any legal weight in this scenario?