Atrial fibrillation causes and lifestyle risk factors

Atrial fibrillation (Afib) is an irregular and often rapid heart rhythm caused by abnormal electrical signals in the heart. This condition can lead to serious complications, including blood clots, stroke, and heart failure. Causes of Afib include aging, genetics, heart disease, infection, and tissue changes such as inflammation or fibrosis.

Lifestyle factors significantly impact the risk and management of the condition. Heavy alcohol use, smoking, illegal drug use, high stress, and vigorous endurance sports are noted as risk factors. For individuals already diagnosed with Afib, alcohol consumption—including beer—should be approached with extreme caution or avoided, as it can trigger or worsen heart rhythm episodes.