# Atrial fibrillation risk and management > Live situation record from CLSTR: https://clstr.news/situations/atrial-fibrillation-risk-and-management > Updated: 2026-08-05T10:27:00.000Z. Sources: 3. Developments: 2. In July 2026, the German Heart Foundation warned that atrial fibrillation (AF) is the most common sustained heart‑rhythm disorder and a major contributor to stroke, noting that 20‑30 % of strokes are linked to undiagnosed AF. It urged regular pulse checks for people over 65 or with hypertension, and recommended ECG or long‑term monitoring when irregularities appear. Treatment options described included rhythm‑restoring drugs, anticoagulants, catheter ablation and surgical isolation of pulmonary veins. A week later, a Norwegian cohort study of more than 87,000 adults followed for 15 years showed that regular physical activity further reduces the risks associated with AF. Compared with inactive participants, those with low, moderate or high activity levels experienced 9‑19 % lower stroke risk and 11‑22 % lower all‑cause mortality, with active AF patients living up to 1.2 years longer on average. The findings reinforce existing advice for at least 150 minutes of moderate‑intensity exercise per week, highlighting lifestyle measures as a complement to medical management of AF. ## Timeline ### 2026-08-05: Exercise cuts stroke and mortality risk in atrial fibrillation patients A 15‑year Norwegian study of 87,000 adults shows regular exercise cuts stroke risk by up to 19% and death risk by up to 22% in atrial fibrillation patients, extending life by about 1.2 years. 3 sources. https://clstr.news/cluster/exercise-cuts-stroke-and-mortality-risk-in-atrial-fibrillation-patients ### 2026-07-20: Atrial Fibrillation Risks and Detection Guidance Highlighted by German Heart Foundation Atrial fibrillation, the leading heart rhythm disorder, can cause 20‑30 % of strokes; symptoms vary, regular pulse checks are advised, and treatment includes medication, blood thinners, or ablation. 5 sources. https://clstr.news/cluster/atrial-fibrillation-risks-and-detection-guidance-highlighted-by-german-heart-foundation --- Cite as: Atrial fibrillation risk and management. CLSTR, https://clstr.news/situations/atrial-fibrillation-risk-and-management