Science isn't even the be-all-end-all. I am not anti-science, but there are many scientific studies that are bought and paid for by interest groups and biased researchers.
Many studies cannot and have not been replicated. In fact, so much so that, at times, it makes it hard for me to entirely trust something just because someone says: "A researcher/scientist said so!"
I think humans, especially those who elevate science to almost the level of divine understanding, blind themselves with the exact same ignorance and biases that the religious do. It's effectively faith. Faith that the science was done right. That there was no bias. There are, of course, clearly replicable studies, and these are ones I hold as fact, but we know so little about the human mind that research on psychology is mostly guesswork.
Given that science is a constant process of improvement, and in the medical field standard practices change all the time, I think people should reserve at least a little scepticism for the sciences as they do religion.