Bea, thanks for posting. I'm very science-oriented and always skeptical about reported correlations between gender and (whatever), but I did some reading and it does look there's solid evidence for that. Fascinating. Are you aware of any other co-incident conditions that have been identified?
You're right about causation, and it bears repeating. What is being reported is two conditions that sometimes occur together, at least to a degree that rules out random chance. But does A cause B, or does B cause A, or does C cause both A and B...? How many different things can cause A?