Cardiology

Depression linked to common heart rhythm disorder

Depression may increase the risk for atrial fibrillation, the most common heart rhythm disorder that can lead to blood clot formation and stroke, according to preliminary research presented at the American Heart Association's ...

Medical research

Unexpected protein could play role in common brain disorder

Scientists have known for years that amyloid fibrils—fibrous, ropelike structures formed by closely linked protein molecules—are present in the brains of patients with Alzheimer's and Parkinson's diseases and likely play ...

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