Caffeine operated by blocking phosphodiesterase and increases cyclic AMP which had the same effect of increasing noradrenalin. (idmprogram.com)
Hormones such as noradrenalin increase awareness, arousal and increase availability of energy (glucose). (idmprogram.com)
Her cheese of choice happened to contain high amounts of tyrosine, a precursor for the synthesis of noradrenalin (a stimulant made by the adrenal gland). (virginiahopkinstestkits.com)