Atrial fibrillation what is it

Atrial fibrillation (AFib) is a heart rhythm disorder where the heart's upper chambers beat irregularly and often rapidly. It can lead to complications like stroke and heart failure. Causes include heart conditions, age, obesity, and certain medications. Symptoms vary but may include palpitations, fatigue, and shortness of breath. Treatment aims to restore normal heart rhythm, control rate, and reduce complications through medications, procedures, or surgery.