I was doing more research on Inositol this morning when I stumbled upon this website.
What really caught my eye in the article is that it says: 'Inositol takes part in the chemical equilibrium of copper and zinc in the nervous cells.The lack of this vitamin can produce of excess copper that will be responsible for the appearance of numerous problems of the nervous system: anxiety,insomnia, nervousness,depression, stress, phobias or fears. -- I never knew that, and it makes so much sense as to why it works!
Here's the full article: It wouldn't let me cut and paste.