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What is a 8am cortisol level test for? Why 8am? Is that hour your highest level?
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Dr. Norman Levine
Dermatology
In brief: Cortisol
An 8 am cortisol level measures the function of the adrenal gland.
It is done at 8 am because the levels are usually higher.

In brief: Cortisol
An 8 am cortisol level measures the function of the adrenal gland.
It is done at 8 am because the levels are usually higher.
Dr. Norman Levine
Dr. Norman Levine
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