Atrial fibrillation is no longer just a rhythm problem to be shocked or ablated — it's a structural disease driven by lifestyle and metabolic dysfunction. This review from Japanese cardiologists synthesizes current evidence showing that aggressive lifestyle intervention can reverse the atrial remodeling that drives AF progression. Key findings: cutting alcohol to three or fewer drinks per week reduces recurrence risk; moderate exercise helps but extreme endurance training raises risk; a 10% weight loss can reverse atrial fibrosis from epicardial fat; strict blood pressure control prevents irreversible structural damage; SGLT2 inhibitors and GLP-1 agonists offer cardiac benefits beyond blood sugar; and treating sleep apnea with CPAP improves ablation success rates. The takeaway is clear — AF management demands a multidisciplinary approach targeting root causes, not just symptoms.
