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(faz @ Jul. 09 2007,10:48)</div><div id="QUOTEHEAD">QUOTE</div><div id="QUOTE">dan from some of the reading i have been doing lately,it seems that the rise you get in gh/test is negated by the rise in cortisol,so would it not be better to make sure you minimise the rise in cortisol by pre feulling and not staying to long in the gym.</div>
Well it's not really negated.
You may be able to lessen the rise in cortisol through proper pre-fueling and then again maybe not, what I mean is there is a littany of studies saying you can and littany saying you can't, it's simply a biological sequence to liberate fuel for the body.
I think what is far more important than owrrying about these transient changes is how the body adapts to this stress. So I'll touch on it briefly.
Whenever you subject your body to unfamilar stress cortisol will raise, but as you continue to subject the body to the stress it begins to lessen this rise, IOW we adapt.
So for instance, you are a complete newb who has never worked out before, your first few weeks of working out will have a higher cortisol response than after you've it done for a couple months. Yet, in a complete newb this is also the same time that the most growth is occuring, so how critical is cortisol to negating growth. Interestingly, after this newb has been working out for a year and the cortisol response has lessened quite a bit, growth has slowed as well.
So if cortisol truly negated growth then wouldn't an experienced lifter have more growth after he's been training for some time? Or wouldn't a newb not grow at all?
So you can see that the whole idea of cortisol being this wicked little hormone that stops growth or causes obscene amounts of fat accumulation around our guts is based mostly on the overhype and misuse of scientific studies that some show a small minute advantage to controlling cortisol.
In other words, don't worry about something that 1. you have little control of anyway 2. something that has, in reality a small impact and 3. Worry more about simple things like a. proper nutrition and b. proper training, and consistency of applying both a and b.