I didn't see anything in there about cortisol being produced in one's brain.
Like I said, if yours does, you better get it checked out.
I think I used the term “release” or intended to do so. I never said “your brain produces cortisol” - Is there a point you’re driving toward outside of semantics? Steady state cardio triggers your brain to release cortisol which is not ideal for fat burn. Happy to connect you to someone to discuss personally if you’re doubtful on that point? Or jog away.... your call. I’m just offering what has worked for me plus about 80 other people of all shapes and sizes who have joined up with this program so far.