tryptophan article by James South
I'll be using it for sleep. I have found out some things
It was a simple study
When it is taken during the day serotonin is released.
When it is taking at night Serotonin wasn't released; however something about . Its on this article.
Also this is more of a Yin supplement which calms etc-( is as well)
Some Yang supplements are the ones that increase aggression-partically norepherine, dopamine