1 Tap water is a mixture of water and other particles. Pure water or H2O is generally referred to as distilled water.  Many of the substances we come into contact with every day are mixtures including the air we breathe which is a mixture of gases like oxygen and nitrogen.
Effect of epinephrine on glucose metabolism in humans: contribution of the liver. Abstract. Epinephrine causes a prompt increase in blood glucose concentration in the postabsorptive state. This effect is mediated by a transient increase in hepatic glucose production and an inhibition of glucose disposal by insulin-dependent tissues. Epinephrine augments hepatic glucose production by stimulating glycogenolysis and gluconeogenesis.
When cortisol and epinephrine are released, the liver produces more glucose, a blood sugar that would give you the energy for fight or flight in an emergency. For most of you, if you don't use all of that extra energy, the body is able to reabsorb the blood sugar, even if you're stressed again and again.