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Published on Jan 20, 2011
Adrenaline is a very powerful stimulant. Adrenaline is produced by, and relased from the adrenal glands, which anatomically sit at the top of each kidney. Adrenaline is released naturally in response to noxious stimuli in the environment, that cause a "fight or flight" reaction. The release of adrenaline happens as a result of this stress, other anxiety provoking stimuli, as well as the intake of chemicals. Commonly consumed chemicals that can result in the release of adrenaline into the blood stream are Nicotine, Caffeine, and less frequently, but sometimes resulting in death... Cocaine. Adrenaline effects the heart in two profound ways. First it dramatically constricts the peripheral vasculature increasing the resistance against which the heart must pump. At the same time the adrenalin causes a dramatic increase in the heart rate. Both of these factors contribute to a tremendous strain on the heart. This strain can lead to either heart rhythm disturbances, ischemia, or both. It can also lead to a heart attack, if the effects of the Adrenaline are not reversed. Adrenaline acts, under normal conditions, to help the heart and other organs, adapt to an ever-changing environment. And under normal conditions, does not cause undo harm to the healthy heart.