That's awesome. I totally agree that morning light stimulus, activity, and diet stimulates Cordisol.
However my new Endocrinologist was able to clarify for me that the body when in a healthy state requires a little less than 5mg
of Cordisol. So Clinically
speaking, as long as the
Prednisone is supply 5 mg or
more, whatever we stimulate
won't be generated. However
he stated that "instinctively" he
would anticipate that a
minimal Cordisol is produced,
and more significantly, that
cordisol producing activities
keeps those pathways open and
stimulated for when we do get below 5mg and want to see the body take over.
Dr. Andrew Hubberman is a Neurologist/Optomoligist who discussed the neural transmitters in the back of the eye that stimulate Cordisol.
Here are two of his videos, and two from a "Dr. C" that I believe are credible and helpful:

Hubberman...
Circadian Rhythm affect on the daily Cortisol curve, stimulated by morning light

Start here: 2:25 but the "kicked" starts here: 3:45

Same topic but very long lecture

Start here: 17:00 but "kicker; is here; 21:00

Dr C
Mythology of Adrenal Fatigue

Herbs to stimulate Adrenal Function