Blood-brain barrier conflict with Doc - Help please

[Guest guest]

Hi All,

Well here we go again with another Dr. that says I need some T4 because of the

" blood-brain barrier. I do not understand what this means(could use an

explanation) but I do know that I have heard Val repeatedly say that it is

nonsense about the T4 crossing the BB barrier. Is there anything in writting

for ammunition that I can take back to my Doc to prove his knowledge in this

area is incorrect??? Sorry, I tried to do my own research but did not get too

far plus the fact that I'm confused as to how this works in the first place. I

would really appreciate and explanation or anything that I could take to him in

writting.

Thanks as always!

Cindy