I read somewhere how that after hair follicles have not been growing for a long while, that the hairs just die out and the root or whatever is closed up. I dont know if this is true but my facial hair is gradually growing slower and slower and my body hair growth has halted basically. I would hope that after growth just stops after awhile that the follocle or root or what it is is permanently dead. Is this true or not?

I don't know if the follicles would wake up again if you stopped taking your HRT.  I'm guessing probably not, but I don't know that for sure.  But as long as you are taking estrogen, they will remain slowed down on the face and at least dormant on the rest of the body.