Yeah, but those nootropic stacks all spec dosage at 5mg or less, and actually recommend against the levels most people here are taking. They also seem to be working on increasing long term memory, where increased cAMP in the brain seems to reduce working memory. And while I don't dispute what you say about thyroid function and test, shouldn't it also increase levels of insulin, aromatase, and so on through the same mechanism? What about effects on precancerous/cancerous cells? Not trying to give you a hard time-just want to understand potential long term effects, and you seem to know about this stuff.