Heart arrhythmia develops when the heart is unable to regulate electrical impulses that coordinate heartbeats. This causes it to beat too fast or too slow. Heart arrhythmia can be harmless and may feel like a minor inconvenience. However, in more severe cases, heart arrhythmia may require urgent medical attention if the patient has other diseases that could exacerbate their condition. Heart rhythm problems occur when the electrical signals that coordinate the heart's beats don't work properly. The faulty signaling causes the heart to beat too fast (tachycardia), too slow (bradycardia) or irregularly. Heart arrhythmia can have no symptoms or contribute to heart attacks, strokes or sudden cardiac arrest and thus, be fatal. Some risk factors include a previous history of heart disease or heart surgery, thyroid disorders, diabetes, excessive alcohol, smoking or stimulant drug use. Men are also slightly more prone to it, but women suffer greater risk of death. Heart arrhythmia treatment may include medications, catheter procedures, implanted devices electricity through defibrillation, ablation (radio frequency), monitoring by machines, regular checkups, or surgery to control/eliminate the irregular heartbeats. A heart-healthy lifestyle can help prevent heart damage that can trigger certain heart arrhythmias.