In my attempt to understand cortisol I wonder how the body produces the cortisol normally? We speak of that taking T3 with following CT3M can support the cortisol production since this happens during our latest four sleeping hours.
The blood test for cortisol shall be taken early in the morning, without eating anything before the test. Some say before kl 08:00, others say three hours after wakening. I'm not always awake at 08...
Of course a saliva test is the best, but this is usually not taken in a first step.
Stefan Sjöberg, chairman of the Swedish endocrinologist organization, said at a seminar in April 2015 that the cortisol level should be at least 500, the guidelines says 400 tough – but this is how it usually is, the guidelines are very wide.