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.
Fainting is a temporary loss of consciousness. Near-fainting is like fainting, but you don't fully pass out. Here's how to care for yourself at home after this occurs.