I have heard of this but have not seen how it can be reversed.
My cortisol levels appear to be reversed...ie low in the morning and high at night.....leading to insomnia, among other things.
The numbers are:
8 AM 14 range 13-24
Noon 13 range 5-10
5 PM 23 range 3-4
Midnight 49 range 1-4
Cortisol Burden 99 range 23-42
These are saliva tests so I do not have complete confidence in them but they do seem to reflect the reality of the situation.