Question: Is it possible to bring people back from the dead?

Asked by lovedhiren to Cindy, Katelin, Kate, Miranda, Yagiz on 12 Mar 2013.

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  1. Photo: Miranda WeenMiranda Ween
    answered on 12 Mar 2013:

    If by dead you mean their hear has stopped, then yes. There is a short window after this has happened before the body is deprived of oxygen, specifically the brain, where you have the chance to get their heart beating again and oxygen flowing through the blood again. This window is only a few minutes generally, but i know that there has been a case of a drowning survivor who was “dead” for 66 minutes before they got their heart pumping again and they were perfectly fine afterwards!

    but as for reanimating tissue that has been deprived of oxygen longer than this, my answer is no, not at this time. I think this would require stem cells capable of repairing the damage done from not having oxygen pumping through the blood in the body

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  2. Photo: Yagiz "Biohacker" Alp AksoyYagiz "Biohacker" Alp Aksoy
    answered on 20 Mar 2013:

    Medical definition of death is the cessation of all vital functions of the body including the heartbeat, brain activity (including the brain stem), and breathing. Once people are “dead” then there is no way back – however let me tell you something really interesting.
    A group of scientists/entrepreneurs has come up with an idea to return people back from dead. The process is known as “Cryonics”. Cryonics is the low-temperature preservation of humans and animals who cannot be sustained by current contemporary medicine, with the hope that healing and resuscitation may be possible in the future. Cryopreservation of people or large animals is not reversible with current technology. This means once you freeze them, there is no way back. However the idea is that people who are considered dead by current legal or medical definitions may not necessarily be dead according to the more stringent information-theoretic definition of death. It is proposed that cryopreserved people might someday be recovered by using highly advanced future technology. It sounds very cool, right?
    However the future repair technologies assumed by cryonics are still hypothetical (there is no real model for that) and not widely known or recognized.

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