Heart conditions are always troublesome and somewhat scary. This is especially true if the condition in question causes your heart to beat erratically. Arrhythmia is a heart issue that is characterized by an irregular heartbeat. Arrhythmia can occur if your heart is beating too rapidly, too slowly, or simply in an irregular pattern. Think you or a loved one might be suffering from this medical issue? Let’s take a good look at arrhythmia and its causes below.