Based on Darwinian evolution, our brains and bodies are just the product of time plus chance acting on matter. Our brain reactions are nothing more than neurons firing governed by the laws of physics. This makes our behaviors, decisions and desires not a matter of choice, but of chance with no way to change them. This is known as determinism which also negates the freedom of the will. Is there anyway that science can affirm or deny this conclusion?
Actually yes there is! Neuroscientist, Jeffery Schwartz falsifies materialist determinism in this article posted by Winteryknight.com below:
Be sure to also check out his debate at the end of the article with Michael Shermer.