INS and Hyperglycemia: Chronic stress can lead to increased sympathoadrenal system activity, which causes reduced glucose tolerance and an increased chance of having an acute cardiovascular event [11]. Infusing catecholamines leads to increased glycolysis, increased glycogenolysis as well an increase in gluconeogenesis, and can cause suppression of insulin-mediated glycogenesis under physiological circumstances, leading to hyperglycemia and hyperlactatemia [12].