Aritmi, or arrhythmia, refers to an irregular heartbeat that can occur when the electrical impulses that coordinate heartbeats do not function properly. This can result in the heart beating too fast, too slow, or in an erratic pattern. Aritmi can be harmless, but in some cases, it may lead to serious health issues, including stroke or heart failure. There are various types of aritmi, such as atrial fibrillation, ventricular tachycardia, and bradycardia. Symptoms may include palpitations, dizziness, or shortness of breath. Diagnosis typically involves an electrocardiogram (ECG) to monitor the heart's rhythm and determine the appropriate treatment options.