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.
This is usually due to a mildly elevated heart rate and increased force of each heartbeat. These are normal responses of the heart when exposed to epinephrine, but they can lead to uncomfortable symptoms. With normal heart responses the symptoms typically improve when the body levels of caffeine diminish.