http://www.hrspatients.org/patients/risk_factors/default.asp
This document also available in Spanish
People who appear healthy and free of heart disease can experience arrhythmias but those with heart disease are at the highest risk. Reducing heart disease is key to reducing arrhythmia. This document discusses arrhythmia prevention, which falls into two main categories: preventing heart disorders in general and monitoring and treating any existing heart problems. The document also reviews risk factors and conditions that can increase the likelihood of developing arrhythmias, including diabetes, smoking, obesity, and stress.