Myths & Misunderstandings of Adrenaline. To sell a cure? You need a poison. But is adrenaline such a poison? Ask any number of doctors, like Dr. Veronique Mead. "The adrenaline response has a number of very specific effects aimed at maximizing survival, mediated by circulating epinephrine and cortisol (Braunwald et al., 2001). These effects include a state of heightened alertness, increased energy with which to meet a potentially difficult situation, and augmented muscle strength (Ganong, 2001). In preparation for battle, chemicals are released into the blood to facilitate clotting, and blood vessels in the skin are constricted to prevent heavy blood loss in the event of wounding (Ganong, 2001). Similarly, blood pressure and heart rate increase and the kidneys retain water, all in support of tissue perfusion and the maintenance of fluid volume in the event of sweating or blood loss (Ganong, 2001). In addition, the spleen deposits red blood cells into the blood stream in order to increase oxygen delivery to muscles (Juhan, 1998), and pupils dilate to let more light into the eyes in order to increase visual acuity (Ganong, 2001)." hockscqc/articles/Adrenaline/index.htm
Posted on: Wed, 07 Aug 2013 16:28:11 +0000
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