You may be surprised to learn that atrial fibrillation, an abnormal heart rhythm, follows heart failure as the most common type of heart disease. More than 2.2 million people in the United States suffer from heart disease caused by irregular heart rhythm, and worldwide more than 5 million are affected.
Because risk increases with age, it is expected that the number of people over the age of 80 with atrial fibrillation will quadruple in the next seven to eight years. In this article you will learn what atrial fibrillation is, how it works, its potential dangers, and what causes it.
