http://vintagemediashop.com/showthread.php?t=66404
http://www.newsweek.com/2007/05/06/to-t ... -dead.html
http://www.freerepublic.com/focus/f-chat/2283722/posts
Your cells are programmed to self destruct if they ever become abnormal or cancerous.
For a long time, doctors thought that the reason they could not revive people after 5 minutes of no oxygen is that irreparable damage was done. Death was defined as when the heart stopped beating and the brain shut down. Then in 2007, scientists looked at heart cells under a microscope, to investigate the irreparable damage. They were suprised to see that the heart cells did not die until after 2 hours without oxygen. They simply shut down since they did not have any energy. They only died earlier than 2 hours when oxygen was re-introduced all of a sudden, as is done during CPR. The scientists believe that the cells can't tell the difference between being abnormal, and having a sudden oxygen change. They self destruct.
Much later, some scientists experiemented on several human victims, using known methods for some of them, and an experimental method for the others. The experimental method was to gradually re-introduce oxygen into the system. The CPR patients had a 15% recovery rate, as expected. The gradual group had an 80% recovery rate. The scientists then set out to find the best way to bring people back.
As long as the body has been without air less than 5 minutes, CPR seems to be effective. After that, you have two hours to save someone with the gradual method, but can kill them with CPR, the article says. I have not found any updates.
http://www.newsweek.com/2007/05/06/to-t ... -dead.html
http://www.freerepublic.com/focus/f-chat/2283722/posts
Your cells are programmed to self destruct if they ever become abnormal or cancerous.
For a long time, doctors thought that the reason they could not revive people after 5 minutes of no oxygen is that irreparable damage was done. Death was defined as when the heart stopped beating and the brain shut down. Then in 2007, scientists looked at heart cells under a microscope, to investigate the irreparable damage. They were suprised to see that the heart cells did not die until after 2 hours without oxygen. They simply shut down since they did not have any energy. They only died earlier than 2 hours when oxygen was re-introduced all of a sudden, as is done during CPR. The scientists believe that the cells can't tell the difference between being abnormal, and having a sudden oxygen change. They self destruct.
Much later, some scientists experiemented on several human victims, using known methods for some of them, and an experimental method for the others. The experimental method was to gradually re-introduce oxygen into the system. The CPR patients had a 15% recovery rate, as expected. The gradual group had an 80% recovery rate. The scientists then set out to find the best way to bring people back.
As long as the body has been without air less than 5 minutes, CPR seems to be effective. After that, you have two hours to save someone with the gradual method, but can kill them with CPR, the article says. I have not found any updates.
uke: