Im not trying to step on mikes toes but heres my shot at the negative feedback question?
Negative feedback is a way that your body (Hormonal, Nervous etc. etc. etc) regulates the amount or saturation of a compound within itself. Its (without all the scientific wording) a way you body shuts down certain processes when it no longer needs them. For example: Your body knows it needs a certain amount of testosterone in its blood at any given time. If that level falls short its going to trigger the hormone secreting cells (your leydig cells of your testis) to produce and secrete more into you blood circulation. Well how is your body going to know when to stop producing testosterone?? By triggering a shut of "switch" that says O.K. got enough test for now you can stop!! Basically that shut of "switch" is negative feedback, its not the most detailed explanation.....if you need more detail or certain specific examples fell free to ask, ill get you all you need!!

So MIKE how did I do....did that get your approval?? Ill post the winstrol/anadrol answer tommorow.

gorilla