Arrhythmia

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Please copy/paste the following text to properly cite this How Stuff Works article:

"Arrhythmia." 30 August 2007. HowStuffWorks.com. <http://reference.howstuffworks.com/arrhythmia-encyclopedia.htm> 09 July 2008.

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Arrhythmia, uh RIHTH mee uh, is an abnormal heart rhythm. Arrhythmias often are extra heartbeats that cause no serious problems. However, sometimes the heart rhythm can become dangerously slow or fast.

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Arrhythmia

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