To be honest, I'm not even sure what "soul" is supposed to mean. If your definition of soul is an ethereal consciousness separate from your physical body than I can honestly say that i believe that doesn't exist. We have plenty of evidence that your consciousness is a function of your brain, we can see this when people experience personality changes as a result of chemical influence or damage to the brain. Someone suffering a stroke can come out of it with changes to their temperment, tastes, even interests. Anyone who's suffered chemical depression should be familiar with the way their neurochemistry effects their personally, and the effects of drugs on people is well known.

I've seen no useful evidence that a soul, based on that definition, does or even can exist. The evidence I do have looks very much like no such thing is happening.