As a medical professional with a focus on cardiology, I can provide you with a detailed explanation of the main causes of atrial fibrillation (AFib). Atrial fibrillation is a common heart rhythm disorder that affects the atria, the upper chambers of the heart. Here are some of the primary causes: 1. Heart Disease: Conditions such as coronary artery disease, heart failure, and valvular heart disease can increase the risk of developing AFib. 2. Hypertension (High Blood Pressure): High blood pressure can cause changes in the heart's structure and function, leading to AFib. 3. Sleep Apnea: This sleep disorder can disrupt normal breathing during sleep, which may contribute to the development of AFib. 4. Alcohol Abuse: Excessive alcohol consumption, particularly binge drinking, can trigger episodes of AFib. 5. Thyroid Problems: An overactive thyroid (hyperthyroidism) can cause AFib due to the increased metabolic demands it places on the heart. 6. Obesity: Excess weight can put additional strain on the heart, increasing the likelihood of developing AFib. 7. Genetic Factors: A family history of AFib or certain genetic mutations can predispose individuals to the condition. 8. Age: The risk of developing AFib increases with age, particularly after the age of 65. 9. Other Medical Conditions: Conditions like lung disease, diabetes, and kidney disease can also contribute to the development of AFib. read more >>

Possible causes of atrial fibrillation. Abnormalities or damage to the heart's structure are the most common cause of atrial fibrillation. Possible causes of atrial fibrillation include: High blood pressure.read more >>