Consciousness After Death: Strange Tales From the Frontiers of Resuscitation Medicine :
"When you die, there's no blood flow going into your brain. If it goes below a certain level, you can't have electrical activity. It takes a lot of imagination to think there's somehow a hidden area of your brain that comes into action when everything else isn't working.
These observations raise a question about our current concept of how brain and mind interact. The historical idea is that electrochemical processes in the brain lead to consciousness. That may no longer be correct, because we can demonstrate that those processes don't go on after death.
There may be something in the brain we haven't discovered that accounts for consciousness, or it may be that consciousness is a separate entity from the brain."
…. "Throughout history, we try to explain things the best we can with the tools of science. But most open-minded and objective scientists recognize that we have limitations. Just because something is inexplicable with our current science doesn't make it superstitious or wrong. When people discovered electromagnetism, forces that couldn't then be seen or measured, a lot of scientists made fun of it.
Scientists have come to believe that the self is brain cell processes, but there's never been an experiment to show how cells in the brain could possibly lead to human thought. If you look at a brain cell under a microscope, and I tell you, "this brain cell thinks I'm hungry," that's impossible.
It could be that, like electromagnetism, the human psyche and consciousness are a very subtle type of force that interacts with the brain, but are not necessarily produced by the brain. The jury is still out."
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