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Here’s a concise summary and perspective on that topic:
Older Age and Lower Fitness Levels May Raise Risk for Arrhythmias
Arrhythmias, or irregular heart rhythms, become more common with age. Research indicates that both advancing age and lower physical fitness levels are associated with an increased risk of developing these abnormal heart rhythms, including atrial fibrillation.
Why Age Matters:
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The heart’s electrical system changes over time, increasing susceptibility to rhythm disturbances.
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Structural changes, such as stiffening of heart tissue and enlargement of atrial chambers, can contribute to arrhythmias.
Why Fitness Matters:
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Lower cardiorespiratory fitness is linked to higher inflammation, hypertension, and obesity—all risk factors for arrhythmias.
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Regular exercise helps maintain a healthy heart structure and supports stable electrical conduction.
Expert Perspective – Eric D. Braunstein, MD:
Dr. Braunstein emphasizes that while age is an unmodifiable risk factor, lifestyle interventions such as improving physical fitness can significantly reduce arrhythmia risk. Even moderate exercise, when tailored to individual capability, supports cardiovascular health and can help mitigate age-related changes in the heart.
Takeaway:
While aging naturally increases arrhythmia risk, maintaining fitness through regular, safe physical activity is a key strategy to lower that risk and promote overall heart health.
If you want, I can also break this down into a patient-friendly version suitable for general readership. Do you want me to do that?
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