I have looked for info on that as well and really haven't found anything. My three girls all seem to have had " nervous habits" from the time that they were little. One twisted her hair (and mine) and now is 15 and still can be found twisting the fur on a stuffed animal, another does things with her hair (its long and she has this series of things she does over and over with it) and the other has things like OCD stuff going on. They all have adrenal overload symptoms, stress out very easily, and become very irritable and moody when they stop taking their magnesium. Most of their symptoms are the same as listed under a mg deificiency and also estrogen dominance.

I've just started one of them on heavy metal detox-NSP to see if I can see a difference in her. I'm not sure how long it will take to see results. If I have good results, I will "make" the other two take it as well.

I'll let you know how it goes.