Ordinary daily urban ambient noise levels correlate with heart disease risk

Evidence

Looking over my Kawa notes, adding up the average decibels and dividing by time, it tots up to roughly 50 decibels for every waking minute. If the noise of local traffic, at around 50 dB, can lead to increased heart problems, as some studies indicate, then we are not just deprived of silence. — George Michelsen Foy, Zero Decibels, 185

The first lesson is that, at a safe distance from the launchpad, the world’s greatest noise can be matched by volumes I find on the Broadway train. — George Michelsen Foy, Zero Decibels, 72

Categorization

• corroborated: 3 independent passages support this claim — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 185; George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 72
• XREF: connects to: Certain low-frequency sounds can resonate with body organs and cause physical harm — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 45; Pervasive low-volume informational chatter constitutes a hostile noise distinct from loud sound — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 439; Chronic toxic noise exposure is a widespread, unrecognized pandemic in developed nations — George Michelsen Foy, Zero Decibels: The Quest for Absolute…, 43 (+9 more)