Perhaps having something to do with POIS?
http://www.sciencedaily.com/releases/2013/08/130821151602.htm
I would suggest that in regard to POIS, these type of studies offer interesting information from a symptom reduction perspective, and are most helpful for folks whose POIS has not become long term or chronic in nature, with the potential to stall further onset of more severe symptoms.
The data and approaches also potentially could support reduction in the psychological or stress response component in the brain fog and cognitive elements of POIS.
From a purely personal perspective, none of these studies can explain to me, why, (for me), seconds after orgasm (for 3 days), seborhaiec dermatitis skin issues flares up, my sinuses block, and the aforementioned psychological and physical (pain) symptoms are present.
Am into my fourth decade with these experiences and believe me, I have immersed myself in all stress and relaxation response (mind/body/spirit) oriented "cures". But there can't be a cure until someone finds out what is really going on in someone with POIS. I am fascinated to find out what NORD research may show.
Even if it shows that we need to make changes that include diet, lifestyle, mineral supplementation or consider pharmaceutical intervention, I think addressing stress response sits as an import aspect of allowing the body and mind to heal.
PS. I anyone out there in the forum, who also experiences seborrhaiec dermatitis (face/scalp/chest/thighs etc) that is aggravated by any minute exposure to direct sunlight, I would be curious to hear. I haven't met anyone else who has this photo-aggravated (sun) dermatitis, so I am wondering if it is peculiar to POIS.