From time to time an article will appear on scientific attempts to prove, or disprove, the power of prayer.
It might seem an obvious example for apologists to use. If we can provide evidence that prayer works, then unbelievers must sit up and take notice! I am not writing here about anecdotes of personal healing or answered prayer in the lives of friends. Those can be powerful testimonies. Rather, I mean evidence that has been produced by controlled experiments.
Given the reality of answered prayer, what can we make of such scientific studies?