Hi, Mardatha. I was just thinking of checking the things on her website. The parts I've read confirmed many things I had already chosen for myself, and she had some interesting links to research.

I experiment a good bit with supplements, but I don't know anything about supplementing with serotonin.

Doing senior yoga and Callanetics, modified to my parameters, and eating homemade yoghurt help me very much. Dr. Emily Deans posted a few years ago, at her blog, Evolutionary Psychiatry, that yoga and yoghurt increase GABA, which was a bit of reassurance that I had already been on a good track with my choices.

I wish you success in solving the puzzles.