Personal testosterone levels can drop slightly due to stress, over-exercising, or poor sleep, without significant changes in FSH and LH.

“Personally my testosterone has been kind of similar to Nathan's I've had a total testosterone that's been around 500 to 700 and the free tends to be again my units are a little different the lab that I've used uses some other different units my free has been between five and seven which is all in the reference range of the lab that I use... if I am stressed if I am overworked out if I have not slept well my testosterone will drop a little bit my FSH and LH don't move around a whole lot”