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Study: Listening to music while driving reduces cardiac stress
The level of cardiac stress was estimated by measuring heart rate variability using a heart rate monitor attached to the participant's chest. Defined as fluctuations in the intervals between consecutive heartbeats, heart rate variability is influenced by the autonomic nervous system. The more active the sympathetic nervous system, the faster the heartbeats, while the parasympathetic nervous system tends to slow it down.
"Elevated sympathetic nervous system activity reduces heart rate variability, whereas more intense parasympathetic nervous system activity increases it," Valenti said. Conversely, heart rate variability increased in the drivers who listened to music, indicating a higher level of parasympathetic nervous system activity and a reduction in sympathetic nervous system activity. "Listening to music could be such a preventive measure in favor of cardiovascular health in situations of intense stress such as driving during rush hour," he said.
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