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Atrial fibrillation (AFib) is a common and serious heart condition characterized by an irregular and often rapid heart rate. In a normal heart, the upper chambers (atria) beat in a regular, coordinated rhythm with the lower chambers (ventricles), allowing blood to flow efficiently through the heart and the rest of the body. However, in atrial fibrillation, the atria quiver (fibrillate) instead of contracting effectively.

Here are some key points about atrial fibrillation:

*Causes:*
*Age:* AFib becomes more common as people age.
*Heart Conditions:* Hypertension (high blood pressure), heart valve diseases, and heart failure can increase the risk.
*Other Health Conditions:* Diabetes, obesity, and hyperthyroidism are associated with a higher risk.
*Lifestyle Factors:* Excessive alcohol consumption, smoking, and stimulant drug use can trigger AFib.
*Other Chronic Conditions:* Chronic kidney disease and sleep apnea are linked to AFib.

*Symptoms:*
*Palpitations:* Feeling a rapid, irregular heartbeat.
*Fatigue:* Unexplained tiredness, especially during physical activity.
*Dizziness or lightheadedness:* Feeling faint or woozy.
*Shortness of breath:* Difficulty breathing, especially during physical exertion.
*Chest pain or discomfort:* Not always present, but can occur.

*Complications:*
*Stroke:* AFib can lead to the formation of blood clots in the atria, which can travel to the brain and cause a stroke.
*Heart Failure:* Over time, AFib can weaken the heart and contribute to heart failure.
*Chronic Fatigue:* The irregular heartbeat can lead to persistent fatigue and decreased quality of life.

*Diagnosis:*
*Electrocardiogram (ECG or EKG):* A common test to diagnose AFib by measuring the heart's electrical activity.
*Holter Monitor:* A portable ECG device worn for 2448 hours to monitor heart activity continuously.
*Blood Tests:* To check for thyroid problems or other conditions that might trigger AFib.
*Echocardiogram:* An ultrasound of the heart to assess its structure and function.

*Treatment:*
*Medications:* Antiarrhythmic drugs to restore a normal heart rhythm, and anticoagulants (blood thinners) to reduce the risk of stroke.
*Cardioversion:* A procedure where an electric shock is used to reset the heart's rhythm.
*Ablation Therapy:* A procedure to destroy or scar the tissue causing the abnormal heart rhythm.
*Lifestyle Changes:* Managing underlying conditions, quitting smoking, limiting alcohol and caffeine, and maintaining a healthy weight can help manage AFib.

It's important for individuals experiencing symptoms or at risk of AFib to seek medical advice promptly. The condition can often be managed effectively with proper medical care and lifestyle changes.


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