just want to mention that one of the key ways paraxanthine (main metabolite of caffeine) functions is increasing liver metabolism of fats into sugar

its effect in neural synapses of suppressing ... damn... some amino acid or something... is not the major biological effect, and 12% of caffeine is converted to theobromine, which dilates blood vessels, cacao is better for your health and sleep hygiene

anyway, so back to the point, the reason why bullet coffee, or bulletproof coffee, is interesting is mainly because it combines caffeine with the raw material it stimulates the liver to turn into sugar

i'm not sure this is actually a good thing