No I remember reading somewhere about humans generating a certain amount of energy while not doing anything, it stuck with me over the years because I thought it was a really interesting discovery. I had to google what the exact amount was :)
I did not know about a weight reduction at death, I will look it up. Thanks for that.

I think reincarnation could be possible, I know a lot of cultures believe in it. There is so much we don't under stand and anything could be possible.
But I do believe there is an energy about life, which goes somewhere when we die.
It could all come down to this multiverse theory, where they reckon there could be a infinite amount of universes. So maybe we are locked in an infinite process of life and death, passing from universe to universe.