In a recent medical study by ABC News on the 'silent killer' sweeping cities, researchers confirmed that street noise is not just a source of annoyance, but a direct enemy to human health that aggressively attacks the heart muscle from the very first night. The research team confirmed that monitoring vital changes proved a disturbance in heart rate variability and a decrease in efficiency. The study from the University of Gothenburg in Germany showed that exposure to traffic noise at typical urban levels, even for a brief period, is sufficient to cause acute physiological stress that raises stress levels in the cardiovascular system, thus providing a precise scientific explanation for the close link between urban noise and the increased risk of developing chronic high blood pressure.
