This post is for evidence that the claims of various religions are not true. Studies showing that prayer doesn't work, things of that nature. And if you disagree with something posted here and have evidence a particular study might not be valid, feel free to dispute its claims here. For example, it's legitimate to say that a study has a small sample size, or hasn't been reproduced, or that something posted here doesn't apply to a particular situation for some logical reason.
Also, let's keep in mind that "The claims of the bible" are not the same as "The claims of the Christians on this site". Lots of people disagree on what exactly large parts of the bible mean. So let's confine ourselves to a claim made on this site, or maybe something from the bible you think is nearly universal (although you'll be surprised how often the response you get will be "Well we don't believe in that", or "That story isn't meant to be taken literally").