I guess? It's intimately related to the hypothalamic–pituitary–thyroid axis. https://en.wikipedia.org/wiki/Hypothalamic–pituitary–thyroid_axis https://en.wikipe

I guess? It's intimately related to the hypothalamic–pituitary–thyroid axis. https://en.wikipedia.org/wiki/Hypothalamic–pituitary–thyroid_axis https://en.wikipedia.org/wiki/Hypothalamic–pituitary–thyroid... But I'm not sure what you're getting at. Trust me, inject 500mg of testosterone a week, you're going to notice changes.