Science (neuroscience specifically) has led me to believe that consciousness is a byproduct of the evolved complex brain. This completely changed my views of personal spirituality and religion. It has also made me a vegetarian.
How did science change your views on spirituality and religion?
Since I don't think that science supports the idea of a soul, I have no need for a religion to explain it.
Don't take this too harshly, but this isn't a great way to think about religion. Science is excellent, and can and will take you very, very far. But there are things for which an explanation does not help, and general philosophy and religion are for those times in life. It's not anti-science to admit that a problem's resolution and its answer can be separate things. This probably sounds condescending, but I've just seen a lot of atheist friends descend into nihilism because they've already decided that the things that can give consolation don't work because they don't give answers.