Everyday Noise Levels May Affect Heart, Karolinska Institute Study

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Even the minor noise that fills everyday life, from the ring of a cell phone to the conversation that follows, may have short-term effects on heart function, a small new study suggests. In the study of 110 adults equipped with portable heart monitors, researchers found that people's heart rate tended to climb as their noise exposure increased - even when the noise remained below 65 decibels.

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