02. What causes AF?

The prevalence of AF is increasing with age. In addition, the majority of AF cases occur in a context of pre-existing cardiovascular disease, such as hypertension, coronary artery disease, valvular disorder, and congestive heart failure. Other medical conditions that can cause AF include congenital abnormalities, obesity, diabetes, and hyperthyroidism. AF can also be caused by environmental factors such as smoking, excessive alcohol consumption, caffeine and stress.