Arrhythmia, conjointly referred to as heart disease arrhythmia, heart disease, heart condition, cardiopathy or heart arrhythmia, may be a cluster of conditions during which the heartbeat is irregular, too fast, or too slow. the guts rate that is too quick – on top of one hundred beats per minute in adults – is termed cardiac arrhythmia, and a pulse rate that is too slow – below sixty beats per minute – is termed arrhythmia. Some varieties of arrhythmias do not have any symptoms. Symptoms once gift might embody palpitations or feeling an intermission between heartbeats. in additional serious cases, there could also be light-headedness, passing out, shortness of breath or hurting. whereas most varieties of heart condition do not seem to be serious, some incline an individual to complications like stroke or cardiopathy.