This is the problem with the blind Akin supporters... I am not talking about “legitimate”. That is a gaffe.
The statement that women can “shut it down” is the belief that is the problem. That is the issue.
A misspeak based on legitimate studies not a belief. It's amazing that no one would argue that the stress of a bad day at the office can cause constipation or diarrhea but think that the immensely more complex female reproductive system is immune to stress. Or is it that you don't think rape causes any stress?