OMB
Mountain Man
so a bit of digging around trying to find some research instead of opinion on caffeine, adrenalin and glucose and I found this
if you want to burn off some fat around your brain you can read the full study here
In conclusion, we have demonstrated that acute caffeine ingestion does not affect EGP (endogenous glucose production). Furthermore, we have demonstrated that caffeine's attenuation of insulin-mediated, whole-body glucose disposal is not attributed to the small increase in adrenaline concentration alone and that additional mechanisms, possibly adenosine receptor antagonism, must be involved.
if you want to burn off some fat around your brain you can read the full study here

