11/11/2025
Atrial Fibrillation 3
Causes of atrial fibrillation
You are more likely to get AF if:
• You are over 55
• You are a man
• You are overweight
• You smoke
• You take certain medicines
• You do endurance sports like long distance running.
AF can also be caused by high blood pressure, heart conditions, chronic kidney disease, overactive thyroid, diabetes, sleep apnoea.