In pure forms, epinephrine can increase blood pressure, increase the contractility or force of the heart, and mildly increase the heart rate. Caffeine in high doses raises your blood level of epinephrine. The question behind the comment I often encounter in clinic is “does caffeine effect my heart?” The simple answer is that it does. Caffeine is rapidly absorbed in about 30-60 minutes in our bodies after ingestion. The use of caffeine may be at an all-time high in today’s society as it is in many drinks, energy supplements, exercise regiments, coffee, and some teas.Ĭaffeine is a natural product that is extracted from the raw fruit of coffee plants (over sixty species), kola nuts, cocoa, yerba maté, guarana berries, coffee beans and teas. One of the most common comments that I receive in seeing a new patient with a heart rhythm disorder is “when my heart started racing (or skipping beats) I stopped drinking anything with caffeine.” There seems to be a general perception that caffeine can irritate the heart.
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