Comment author: casebash 15 February 2018 10:56:06PM *  0 points [-]

One of the biggest challenges is trying to even figure out how likely it is caused by something physical vs. a psychological root cause. It is a very controversial topic, to say the least. I spent about an hour looking into this, but I wasn't really able to get anywhere, at least without any knowledge of the field or where to find reliable information.

Comment author: peace34 20 February 2018 03:50:07AM 0 points [-]

I think the general scientific consensus is that it's a physiological condition. But I don't think it matters whether it's psychological or not, anyway - it's just as disabling and underfunded either way.