A considerable size of society is in favor of Euthanasia mostly because they feel that as a democratic country, we as free individuals, have the right to decide for ourselves whether or not it is our right to determine when to terminate someone's life. The stronger and more widely held opinion is against Euthanasia primarily because society feels that it is god's task to determine when one of his creations time has come, and we as human beings are in no position to behave as god and end someone's life. When humans take it upon themselves to shorten their lives or to have others to do it for them by withdrawing life-sustaining apparatus, they play god. They usurp the divine function, and interfere with the divine plan. Euthanasia is the practice of painlessly putting to death persons who have incurable, painful, or distressing diseases or handicaps. It come from the Greek words for 'good' and 'death', and is commonly called mercy killing. Voluntary euthanasia may occur when incurably ill persons ask their physician, friend or relative, to put them to death. The patients or their relatives may ask a doctor to withhold treatment and let them die. Many critics of the medical profession contend that too often doctors play god on operating tables and in recovery rooms. They argue that no doctor should be allowed to decide who lives and who dies. The issue of euthanasia is having a tremendous impact on medicine in the United States today. It was only in the nineteenth century that the word came to be used in the sense of speeding up the process of dying and the destruction of so-called useless lives. Today it is defined as the deliberate ending of life of a person suffering from an incurable disease. A distinction is made between positive, or active, and negative, or passive, euthanasia. Positive euthanasia is the deliberate ending of life; an action taken to cause death in a person. Negative euthanasia is defined as the withholding of life preserving procedures and treatments that would prolong the life of one who is incurably and terminally ill and couldn't survive without them.