Suicide has been regarded as a great sin in different religions. Since 1791, two years after the French Revolution, the criminality of suicide was removed in France as people are regarded free which could decide about themselves. Euthanasia or mercy killing is the intentional killing by act or omission of a dependent human being for his or her alleged benefit. If death is not intended, it is not an act of euthanasia. In Iran, like many other countries, euthanasia is not permitted, although the use of drugs to remove pain and relieve ache of sick people is encouraged
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