It worked for me specifically in that context, but I didn't have a desire to do much with it in ensuing years as it seemed to have a deleterious effect on my creative capacity (important for work I do like) + did have a negative impact on my ability to sleep and made me really hyper.

The grinding happened for me too but didn't bother me much, I just chewed gum. Could see how doing that on a daily basis would be a drag.