alcor问答录-三次审阅终稿.docx

Q: Arent cryonics patients dead?A: Law requires cryonics patients to be legally dead, but this does not mean they are biologically dead. Under ideal conditions, cryonics can begin moments after the heart stops beating. Blood circulation and breathing are then artificially restored, keeping cells of the brain and the rest of the body biologically alive during the early stages of the procedure. The blood chemistry and blood gases (oxygen, carbon dioxide, pH) of a cryonics patient receiving good cardiopulmonary support are similar to those of a legally living person. Cryonics patients are therefore legally dead, but biologically alive, depending on how rapidly procedures are begun after the heart stops. For further clarification of this often confusing issue, please read?Cardiopulmonary Support in Cryonicsin the Alcor online Library.问：人体冷冻病人难道没死吗？答：法律规定的是人体冷冻病人在法律意义上的死亡，但是，这并不意味着他们在生物学意义上死亡了。在理想条件下，心脏停止片刻之后就可以实施人体冷冻。然后，在这一过程的早期阶段，需要人工恢复血液循环和呼吸，保持脑细胞和身体的其他部分在生物学层面上仍然存活。在受到良好的心肺支持的情况下，人体冷冻病人的血液化学性质和血液气体（氧气、二氧化碳、酸碱度）和法律意义上活着的人的是相似的。因此，虽然人体冷冻病人在法律意义上死亡了，但是他们在生物学意义上依然是活着的，这取决于心跳停止后如何快速启动程序。为了进一步阐明这一常常令人困惑的问题，请在Alcor网上图书馆阅读《人体冷冻法中的心肺支持》。Q: How soon after the heart stops must cryonics begin?A: Cryonics procedures should ideally begin within the first one or two minutes after the heart stops, and preferably within 15 minutes. Longer delays place a greater burden on future technology to reverse injury and restore the brain to a healthy state, and make it less likely that the correct original state can be determined. Exactly when such restoration is no longer feasible is a matter of some debate and could be many hours. The greatest impact of delay is that it prevents treatment by chemicals that reduce freezing injury. For further information, see the FAQ question Doesnt the brain die after 4 to 6 minutes without oxygen?, the article Cardiopulmonary Support in Cryonics, and the Cases without Cardiopulmonary Support section of?Alcor Procedures.The most effective way of reducing de