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Poppet
Rather longer than that, I believe.
Wed Mar 8, 2017 6:17pm
24.21.52.54

Most of the references I checked briefly stated 4-6 minutes from cessation of oxygen.

http://www.todayifoundout.com/index.php/2013/11/long-persons-heart-stopped-wouldnt-try-revive/
https://www.quora.com/After-death-how-long-does-the-brain-stay-alive
http://gizmodo.com/how-long-does-your-heart-have-to-stop-for-before-you-ca-1457981280

So I texted my mom (who's a physician, I think most board regulars might remember), and she confirmed that. She mentioned that full recovery after much more than 4 or 5 minutes was much less likely.

Hope this helps.

  • Wikipedia says: Unconsciousness occurs within 10 seconds without circulating oxygenated blood https://en.wikipedia.org/wiki/Decapitation#Physiology_of_death_by_decapitation
    • Rather longer than that, I believe. — Poppet, Wed Mar 8 6:17pm
      • and as energy banks slowly step downTrish, Wed Mar 8 7:02pm
        all manner of information may come into a person's perception. Most people do not realize how much intel we gather every moment of every day that we may not consciously remember, but our brain... more
      • In fact, after a heart attack and collapse I doubt there is any lucid activity and memory is lost as it is lost when consciousness is lost but when the Soul leaves the body it functions lucidly until ... more
    • Just read this today.Sprout, Wed Mar 8 5:03pm
      http://www.sciencealert.com/brain-activity-has-been-recorded-as-much-as-10-minutes-after-death
      • Some brain dead people have survived but that is more common than this. Give us a break! We're talking about millions and you raise one? It has no significance like 1 NDE wouldn't have significance... more
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