That would be assuming that the time frame of PS action is very short. But it was shown that PS's effects on cortisol are rather systemic and are accruing much like steroids - it was shown that a 30day administration trial @ 800mg produced 47% decrease in cortisol. And generally soy derived phosphatidylserine taken once daily - @ 600 mg orally will lower cortisol levels by ~37%. @ 800 mg it will reduce cortisol by ~45% @ 1000 mg it will reduce cortisol by ~51%. Observations were taken 6, 12, and 24 hours after consumption. This is the root of the problem it seems- if it indeed lowers cortisol for such prolonged periods systematically and at such significant rates it could very well be extremely counterproductive.
sending the vote out there