Atrial fibrillation - Symptoms and causes - Mayo Clinic - A fib in adults
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Overview. Atrial fibrillation is an irregular and often rapid heart rate that can increase your risk of strokes, heart failure and other heart-related. Explaining heart rhythm problems in young people. Your risk of several types of cardiovascular events, including atrial fibrillation, climbs higher as you approach middle age. But while atrial fibrillation or AFib risk does go up as you age, this is one heart disorder that could.