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flag Cuffless blood pressure wearables lack accuracy for diagnosing hypertension, the AHA warns.

flag Cuffless blood pressure wearables like smartwatches and rings are popular for continuous monitoring, but the American Heart Association warns they’re not accurate enough for diagnosing or managing hypertension due to variability from factors like skin tone, arm position, and calibration. flag Despite FDA clearance, many devices lack rigorous validation, with up to 80% globally untested. flag The AHA urges more research and standardized testing before these tools can be trusted for clinical use, especially as nearly half of U.S. adults have high blood pressure, a major risk for heart disease, stroke, and dementia.

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