http://www.newswise.com/articles/hyp...al-blood-tests
I'm on a health group and we have a LONG discussion going on this issue.
I've talked about thyroid here I think and won't go into my history again, but I never did good on Synthetic hormone support. Finally in 2002 I was given NDT natural desiccated therapy.
The above link talks about the history before Synthetics hit the medical industry.
Getting the "CORRECT" thyroid support is so critical and is so missed in today's tests.