reflections on "euthanasia"

Euthanasia is the practice of ending life intentionally. I have thought of this topic several times in my life during some classes, and whenever I think of it, it's a very difficult question to answer.  However, if I have to take one side, I'm against euthanasia. I think human don't have a right to decide when to die. Rather, we have a right to care for and preserve life. The word "mercy killing" sounds very scary to me, and I don't think killing itself has a 'mercy' in it.