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Old September 11 2013, 06:23 PM   #152
Robert Maxwell
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Re: What Happens After Death

bbjeg wrote: View Post
Robert Maxwell wrote: View Post
When the electrical currents in your brain--the actions of which generate the brain waves we can measure--stop, you are brain dead. Your existence ceases. Your consciousness ends and your perceptions are null and void.
I understand that. After a brain stops functioning, it can no longer perceive, nor build new memories.
That's where I'm lost. What happens to the energy my brain produced yesterday, not just heat, but if I burn my hand, the section of my brain's flaring in response to it, or the information my brain generated from it?
Why do you think you need to eat? Your brain uses something like 20% of all the energy your body requires. It's a very power-hungry organ. In the absence of adequate blood and oxygen, it can't even use that energy, and so it dies. The cells begin to die, electrical signals can't propagate, and eventually they're all gone. The energy is lost as heat leaving your body.

When your brain responds to a stimulus, that's because a nerve impulse traveled from a nerve ending to your spinal column and then up into your brain, like electricity traveling along a wire. It activates a certain portion of your brain to respond to it. The excitement from that response quickly dies down as the energy goes elsewhere--to other parts of your brain, other nerve endings, and escaping your body as waste heat. Again, that's why your brain is so hungry for energy. It's always being dissipated.

Once your brain ceases functioning and the energy leaves, your conscious existence doesn't continue in some other form. It can't, because it only exists within the physical structure of your physical brain.
I'm not saying after we die we go to heaven, hell, or something like it (if that's what you're taking from my post), I'm asking what happens to all that energy a brain produces in a lifetime after it's unable to produce more energy.
Your entire body is a chemical machine that requires constant inputs of energy (food) and other chemicals (water, vitamins, minerals) in order to stay functional. That's why "death" isn't a single moment in time: your cells are still doing all kinds of stuff in the hours and days after your brain stops working. When your brain stops getting enough blood and oxygen to facilitate its functions, it cannot generate the electrical signals that let it work. The brain doesn't produce energy, it just stops receiving any more, which keeps it from doing its job. What energy remains in your body is lost through heat radiation and chemical breakdowns that start once your blood is no longer flowing.
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