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flag Apple Watches detected significantly more undiagnosed atrial fibrillation in seniors than standard care, potentially improving stroke prevention.

flag A study involving 437 adults over 65 at high stroke risk found that Apple Watches with ECG and pulse monitoring detected atrial fibrillation (AFib) significantly better than standard care, identifying 21 cases—57% asymptomatic—compared to five symptomatic cases in the control group over six months. flag The research, part of the EQUAL trial, showed smartwatch users had a 9.6% AFib detection rate versus 2.3% in standard care, highlighting the device’s ability to catch silent AFib early. flag Findings suggest widespread, subsidized use of such wearables could improve preventive cardiology, reduce strokes, and lower long-term healthcare costs, though clinical benefits like reduced stroke risk are still under study.

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