Quote:Science has not proved or disproved what happens to your conscience after your brain dies.
There is not yet a scientific explanation for consciousness. All we know is that the brain sustains it; that if the brain shuts down, consciousness is lost. Also, that chemical changes in the brain can effect one's consciousness, ability to think, and emotions.
Quote:We do know that science has shown human energy on computer imaging.
The human body does not have a special form of energy, but it is true that the body does use and radiate energy. Obviously, this energy comes from food and drink that we break down. We exude heat energy. We also have electrical & magnetic fields (same thing) because we are composed of the same atoms that compose everything in the universe which all have electric charges. Our body sends electrical signals called action potential through neurons. This is similar to electrons flowing through a circuit, but instead of electronics travelling at a high speed, we have charged molecles like sodium and potassium crossing lipid membranes. The effect is the same. Most likely, this is the "human energy" you are referring to. We can measure what areas of the brain are active because of the electromagnetic fields that these generate. This type of scanning allows us to see what areas of the brain deal with what functions.
Quote:One of the laws of energy tells us that energy does not just disappear but infact changes form.
Yes. The energy is not lost. First of all we take in the energy from the food we eat. We lose energy in the form of heat that comes off our bodies and excrement. As our energy supply is reduced, our body begins turning off parts of itself to conserve energy -- thats why we lose bloodflow, etc. Eventually it starts turning off parts of the brain. One of the first areas of the brain to go is the part that allows us to feel morals and spirituality -- thats why people are capable of turning to cannibalism when they are desperately hungry. It no longer occurs to them that it might be "wrong." Eventually consciousness may be shut off, but this does not mean your cells are all dead yet -- they arent. Eventually all your cells will die off from lack of energy, though. Your body is like a wind-up doll that will wind down and stop working if you dont keep putting new energy into it. It takes energy to keep all the cells in the body going. When you run out, you die. You will still have a little bit of energy left, stored as chemical energy, just as energy is stored chemically in a battery. But its not going to last forever.
Quote:So couldn't the fact that human energy does not die after death maybe weigh towards the idea that we do not cease to exist after death?
Energy doesn't die, like you said it only changes form. For instance, into heat. Our brains use up a lot of energy by thinking and that too creates heat. It also uses a lot of salt and oxygen. So if you're holding your breath underwater, maybe if you try to stop thinking you'll be able to last longer.
In answer to your final question, no that is not possible.
Keeping a consciousness active takes energy. If the body is not getting a continuous supply of energy, then once it runs out of stored energy, stored in the form of sugars and fats etc, then it will turn off your consciousness.