Disorders in the heart's electrical system can lead to arrhythmias, or an abnormal heart rhythm. There are many types of arrhythmias and they're classified by where they occur in the heart and their pattern of abnormality. This segment will explain the arrhythmia known as Atrial Fibrillation.
Carotid artery disease means that a large blood vessel in your neck is partly blocked. You may not have symptoms. But the condition is serious because it can lead to a stroke.