Let's also start by saying that you don't have to run post cycle therapy.........you also don't have to wipe your ass after taking a dump: it's just a really really good idea to do these things :dump:
The first thing we need to understand is what is going on with our bodies when we're taking anabolic steroids:
Exogeneous anabolic hormones (or derivatives of anabolic hormones) are being brought into your system. This causes the body to take a number of responsive actions. The first and foremost (as you already know) is increased muscle mass. Unfortunately, other things are also going on that aren't so great
When an enzyme or hormone is brought exogeneously into the system, chemical balances shift around to attain a certain equilibrium. This is a chemical concept known as Le Chatelier's Principle of Chemical Equilibria. In a nutshell, your body will increase production of estrogen, cortisol, and other hormones in response to heightened testosterone levels, while simultaneously slowering (or completely stopping) natural production of testosterone. Biologist call this negative feedback.......biology sucks doesn't it?
Le Chatelier's Principle for the scientifically impaired:
Let's pretend A and B react to make C (can't get much simpler than that).
A + B --------> C
So we have a mixture containing A, B, and C. According to LeChatlier's principle, if we add more C to the mixture, the amounts of A and B will
increase. If we remove some of the C from the mixture, A and B will
decrease. And if we were to add A, B, or a combination of the two, C will
increase. Still with me here? Good.
What's going on when we come off a cycle:
Ok, so while we're on the cycle, are natural test production is going down to compensate for the exogeneous test intake, and our production of other steroid hormones (i.e. Estrogen, Cortisol, etc.) is going up to compensate for the heightened test levels. When we come off a cycle, we cease intake of exogeneous testosterone. In other words, we have very low test levels, and very high cortisol and estrogen levels: it's the EXACT OPPOSITE of what we had while starting our cycle.
REMEMBER Le Chatelier's Principle because this is where it gets really important.
When we have an excess of one hormone, the others will start shifting around, to attain a certain equilibrium. Ok, I'm gonna say it (and bold it) again because it's just that important.
When we have an excess of one hormone, the others will start shifting around, to attain a certain equilibrium.