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Charcoal-burning suicide is committing suicide by burning charcoal in a closed room. It has similarities with the inert gas asphyxiation method of suicide. ==Mechanism of action== As the charcoal burns, the concentration of carbon monoxide gradually increases. Because of its toxicity (and not the exhaustion of oxygen as sometimes thought) CO concentrations of as little as one part per thousand in the air in a confined space are fatal if inhaled over an extended period.〔(Chart of exposure vs. ppm )〕 The incomplete combustion of carbon produces carbon monoxide, which binds strongly to hemoglobin, rapidly decreasing the ability of blood to deliver oxygen to the body. This results in death due to hypoxia brought about by carbon monoxide poisoning. The method is described as "easy and painless" compared to other suicide methods. It is less painful than methods such as jumping from a high-rise building or cutting with a knife. Many who attempt suicide by charcoal burning use alcohol or hypnotic drugs during the attempt, and survivors report that they felt no discomfort.〔 Some have challenged the description of the method as painless, noting that the lack of oxygen can cause choking.〔(Life is precious )〕 However, this is based on a misunderstanding of the mechanism of action: it is the cumulative serum concentration of CO, not the depletion of oxygen, that causes death. A survivor of this method usually needs intensive care. They may have permanent brain damage. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Charcoal-burning suicide」の詳細全文を読む スポンサード リンク
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